Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 10.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature
Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 10.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
Wet/Dry Gases
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature
Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 10.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
Wet/Dry Gases
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature
Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 10.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature
Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 10.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature
Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 10.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature
Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 10.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature
Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 10.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature
Crucible lids, are flat with a depression for centering on
crucibles with an extension on one side that serves as a
handle.
Supplied in standard packs of 1.
Temperature range 350°C - 600°C will shorten the working life of the crucible and lid due to oxidisation.
Temperature range 600°C - 800°C will show increased levels of oxidisation on the crucible and lid, dramatically reducing its life.
Temperature range 800°C + will lead to severe oxidisation and render the crucible and lid unusable.
Commercially pure or low-alloy nickel has characteristics that are
useful in several fields, notably chemical
processing. Nickel is highly resistant to various reducing
chemicals and is unexcelled in resistance to caustic alkalis.
Nickel 201 is a commercially pure nickel with high thermal
conductivity.
Nickel 201
Nickel 201 is commercially pure (99.6%) wrought nickel and a low
carbon version of Nickel 200. It has good mechanical properties and
excellent resistance to many corrosive environments. Other useful
features: high thermal and electrical conductivities, low gas
content and low vapor pressure. The corrosion resistance makes it
particularly useful for maintaining product purity in the handling
of foods, liquids, synthetic fibers, and caustic alkali's.
High-temperature and Corrosion Resistance properties
Nickel 201 has the excellent corrosion resistance characteristic of
Nickel 200. Because it is a low-carbon material (0.02% max.),
Nickel 201 is not subject to embrittlement by intergranularly
precipitated carbon or graphite when held at temperatures of 315°
to 760°C for extended times, provided carbonaceous materials are
not in contact with it. It is, therefore, preferred to Nickel 200
in all cases where temperatures exceed 315°C.
Nickel 201 is ideal for laboratory crucibles which are capable of
withstanding oxidizing furnace atmospheres up to 1100°C. Above
300°C its mechanical properties change: tensile strength falls,
elongation grows making for example a crucible more malleable when
handling or when heated by a direct flame. This can lead to a
change in the profile/shape of a crucible.
The material is subject to intergranular embrittlement by sulphur
compounds at temperatures above 315°C.
Water
The resistance of Nickel 201 to corrosion by distilled and natural
waters is excellent since resistant to water containing hydrogen
sulphide or carbon dioxide. Nickel 201 gives excellent service in
seawater.
Acids
Sulphuric
Nickel 201 can be used with Sulphuric acid at low or moderate
temperatures.
Hydrochloric
According to the data available, Nickel 201 may be used in
hydrochloric acid in concentrations up to 30%, at room temperature.
Increasing temperature will accelerate corrosion. If oxidizing
salts are present in any but very small amounts, corrosion will be
increased. At less than 0.5% concentration, the material can be
used satisfactorily up to 150°-205°C.
Hydrofluoric
Nickel 201 has excellent resistance to anhydrous hydrofluoric acid
even at elevated temperatures. In aqueous solutions, however,
service is usually limited to below 80°C. Even at room temperature,
60-65%
commercial-grade acid has been found to severely corrode Nickel
201.
Phosphoric
Nickel 201 is resistant to phosphoric acid.
Nitric
Nickel 201 should not be used in nitric acid.
Organic
In general, Nickel 201 has excellent resistance to organic acids of
all concentrations.
Alkali's
The outstanding corrosion resistance characteristic of Nickel 201
is its resistance to caustic soda and other
Alkali's. (Ammonium hydroxide is an exception. Nickel 201 is not
attacked by anhydrous ammonia or ammonium hydroxide in
concentrations of 1%. Stronger concentrations can cause rapid
attack.)
In caustic soda, Nickel 201 has excellent resistance to all
concentrations up to and including the molten state. Below 50%,
rates are negligible, even in boiling solutions. As concentration
and temperature increase, corrosion rates increase very slowly. The
chief factor contributing to the outstanding performance of Nickel
201 in highly concentrated caustic soda is a black protective film
that forms during exposure.
This film – nickel oxide – results in a marked decrease in
corrosion rates over long exposure under most conditions. Because
the presence of chlorates in caustic increases corrosion rates
significantly, every effort should be made to remove as much of
them as possible.
Results of tests in sodium hydroxide solutions of varying
concentrations produces a typical thin black oxide film, found on
some of the samples in the tests at boiling temperature.
Oxidizable sulphur compounds are also harmful, but, by adding
sodium peroxide to change them to sulfates, their effect can be
minimized.
Salts
The metal is not subject to stress-corrosion cracking in any of the
chloride salts and has excellent resistance to all of the
non-oxidizing halides. Oxidizing acid chlorides such as ferric,
cupric and mercuric are very corrosive and should be used in low
concentrations. Stannic chloride is less strongly oxidizing, and
dilute solutions at atmospheric temperature are resisted. The
maximum safe limit in oxidizing alkaline chlorides is 500 ppm
available chlorine for continuous exposure. In bleaching, sodium
silicate (1.4 specific gravity) can be used as an inhibitor to
corrosion; as little as 0.5ml/liter of bleach has been found to be
effective. Some very reactive and corrosive chlorides – phosphorus
oxychloride, phosphorus trichloride, nitrosyl chloride, benzyl
chloride and benzoyl chloride – are commonly contained in Nickel
201.
It has excellent resistance to neutral and alkaline salt
solutions.
Fluorine and chlorine
In comparison with other commercial metals and alloys, Nickel 201
has outstanding resistance to dry fluorine. Nickel 201 is the most
practical for service in chlorine or hydrogen chloride at elevated
temperatures.
p>
Dry gasses are not actively corrosive to nickel at normal ambient
temperature. Nickel is also resistant to dry hydrogen chloride,
hydrogen fluoride and chlorine up to about 535°C. Nickel is not
affected by steam. Gases containing sulphur corrode it. Nickel
itself forms an oxide film from 400°C to 600°C in oxidizing
atmosphere.
Crucible lids provides a cover to crucibles, during heating process preventing chance of hot material spattering out of open crucible.
The lid can be easily removed with either stainless steel or nickel Laboratory Tongs catalogue no. 3030 > 3044. Details on website.
Nickel forms a tightly adhering oxide file between 400°C and 600°C in oxidizing atmospheres.
In choosing crucibles for laboratory work, nickel can be effective with regard to cost per crucible, and for use in fusions where zirconium or other metals cannot be used.
It is even a cost-effective replacement for platinum in those applications for which zirconium must not be used.
No accessories available for this product.
PDF File Product Literature