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What is zinc sulfuride?
Zinc sulfide
This inorganic compound has a chemical composition of ZnS. It is a yellow or white powder and turns darker when it is visible. It is stable when placed in dry air. However, if the air is humid or contains moisture for a prolonged period of time, it will slowly oxidize to zinc sulfurate.
There are two forms of zinc sulfuride crystals. Type A zinc sulfuride is a colorless hexagonal, crystalline powder. It can also be white to offwhite or yellow. The relative density is 4.0887. The melting temperature is 1700°C. Thermal conductivity 25.1 (m/K), thermal expansibility coefficient (volume) 100, 0.163, 200, 0.395, 400, 0.919 and 800, 2.146. A cubic crystal of B-type Zinc Sulfide is available. It is available in white, off-white, and yellow powders. The relative density of the powder is 4.102 and its melting point is at l700degC. Coefficient of thermal extension (volume): 100degC (0.156), 200degC (0.386); 400degC (0.898); 800degC (1.996). It can slowly be oxidized to sulfate, in the air. The crystal form transition temperature of 1020degC is 1020degC. Soluble in dilute mineral acid. Water is insoluble
Preparation of zinc sulfuride
Double decomposition technique: add zinc solution under stirring to produce the metathesis reaction. Ammonium Sulfide is then removed by filtration. Concentrate the product by evaporation, cool to crystallize and centrifuge to get sulfide Zinc.
Zinc sulfide has the following physical and chemical properties
Since Sidot, a French chemist, discovered zinc sulfide fluorescent substances in 1868 it has been studied for more than 130 year. From the 1920s until the 1940s, people have always been interested in studying zinc sulfide material.
Physical properties
Powder that is white to slightly yellow. It becomes crystals when it is heated with H2S gas. The a variation is a hexagonal colorless crystal with a density 3.98g/cm3 with a melting point at 1700degC. While the b variant has a density 4.102g/cm3, it is converted to the a form at 1020degC. They are found in sphalerite. Insoluble when water is used. Soluble in acid. You can see the sun dimmed.
Chemical nature
In humid air, it can be converted to zinc sulfurate over a prolonged period of time. It is usually formed from the interaction of zinc salt solution with hydrogen sulfide. It can emit different colors of fluorescence if it is illuminated with a small amount Cu Mn, Ag, or by adding Mn, Cu, and Ag to activate the crystalline ZnS. As analytical reagents, coatings and paints, opaque and white glass, filling rubber, and plastics.
Application of zinc sulfide
Useful for photoconductor materials, analytical reagents, and phosphors It is also used for the production of dyes. As a coating for different filters and laser window.
Transport and storage of zinc sulfide.
Pack in barrels or woven bags lining with polyethylene bags. The drum or bag’s net weight is either 50kg (or 25kg). Keep the drums in a well ventilated, dry place. Avoid open storage. To avoid moisture, the container should be sealed. It must not be transported with any food or feed. Transport should include cover. Protect the package from the sun and rain by handling it carefully when unloading and loading. This product can be corrosive. poisonous. It can cause irritation to the skin. Operators should wear protective equipment and work clothes. The workshop must be well ventilated.
(aka. Technology Co. Ltd. (aka. Our zinc sulfide is high in purity, fine particle size, and low in impurities. Please Please contact us if necessary.
There are two forms of zinc sulfuride crystals. Type A zinc sulfuride is a colorless hexagonal, crystalline powder. It can also be white to offwhite or yellow. The relative density is 4.0887. The melting temperature is 1700°C. Thermal conductivity 25.1 (m/K), thermal expansibility coefficient (volume) 100, 0.163, 200, 0.395, 400, 0.919 and 800, 2.146. A cubic crystal of B-type Zinc Sulfide is available. It is available in white, off-white, and yellow powders. The relative density of the powder is 4.102 and its melting point is at l700degC. Coefficient of thermal extension (volume): 100degC (0.156), 200degC (0.386); 400degC (0.898); 800degC (1.996). It can slowly be oxidized to sulfate, in the air. The crystal form transition temperature of 1020degC is 1020degC. Soluble in dilute mineral acid. Water is insoluble
Preparation of zinc sulfuride
Double decomposition technique: add zinc solution under stirring to produce the metathesis reaction. Ammonium Sulfide is then removed by filtration. Concentrate the product by evaporation, cool to crystallize and centrifuge to get sulfide Zinc.
Zinc sulfide has the following physical and chemical properties
Since Sidot, a French chemist, discovered zinc sulfide fluorescent substances in 1868 it has been studied for more than 130 year. From the 1920s until the 1940s, people have always been interested in studying zinc sulfide material.
Physical properties
Powder that is white to slightly yellow. It becomes crystals when it is heated with H2S gas. The a variation is a hexagonal colorless crystal with a density 3.98g/cm3 with a melting point at 1700degC. While the b variant has a density 4.102g/cm3, it is converted to the a form at 1020degC. They are found in sphalerite. Insoluble when water is used. Soluble in acid. You can see the sun dimmed.
Chemical nature
In humid air, it can be converted to zinc sulfurate over a prolonged period of time. It is usually formed from the interaction of zinc salt solution with hydrogen sulfide. It can emit different colors of fluorescence if it is illuminated with a small amount Cu Mn, Ag, or by adding Mn, Cu, and Ag to activate the crystalline ZnS. As analytical reagents, coatings and paints, opaque and white glass, filling rubber, and plastics.
Application of zinc sulfide
Useful for photoconductor materials, analytical reagents, and phosphors It is also used for the production of dyes. As a coating for different filters and laser window.
Transport and storage of zinc sulfide.
Pack in barrels or woven bags lining with polyethylene bags. The drum or bag’s net weight is either 50kg (or 25kg). Keep the drums in a well ventilated, dry place. Avoid open storage. To avoid moisture, the container should be sealed. It must not be transported with any food or feed. Transport should include cover. Protect the package from the sun and rain by handling it carefully when unloading and loading. This product can be corrosive. poisonous. It can cause irritation to the skin. Operators should wear protective equipment and work clothes. The workshop must be well ventilated.
(aka. Technology Co. Ltd. (aka. Our zinc sulfide is high in purity, fine particle size, and low in impurities. Please Please contact us if necessary.