Name | Zinc Sulfide |
Synonyms | 77995 irtran2 albalith cleartran SPHALERITE thioxozinc sachtolith Zinc Sulfide Zinc sulfide pigmentwhite7 cipigmentwhite7 c.i.pigmentwhite7 C.I. Pigment White 7 Zinc Sulfide, 2.5 - 5.0 mm |
CAS | 1314-98-3 |
EINECS | 215-251-3 |
InChI | InChI=1/S.Zn/q-2;+2 |
InChIKey | WGPCGCOKHWGKJJ-UHFFFAOYSA-N |
Molecular Formula | SZn |
Molar Mass | 97.46 |
Density | 4.1 g/mL at 25 °C (lit.) |
Melting Point | 1700°C |
Boling Point | 1185°C (estimate) |
Water Solubility | Soluble in acids. insoluble in water. |
Vapor Presure | 12600mmHg at 25°C |
Appearance | White powder |
Specific Gravity | 4.1 |
Color | white to faint yellow |
Solubility Product Constant(Ksp) | pKsp: α-ZnS 23.80;β-ZnS 21.60 |
Merck | 14,10160 |
Storage Condition | RT, dark |
Stability | Stable. May react with water to give toxic hydrogen sulfide. Incompatible with acids, strong oxidizing agents. Air and moisture sensitive. |
Sensitive | Sensitive to light |
MDL | MFCD00011301 |
Physical and Chemical Properties | The product has two crystal forms. Form a zinc sulfide is a colorless hexagonal crystalline powder or a white to off-white or light yellow powder. The relative density was 4.087. Melting point 1700 °c. Thermal conductivity 25.1w/(m? K), coefficient of thermal expansion (by volume):100 °c, 0.163;200 °c, 0.395;400 °c, 0.919;800 °c, 2.146. Type B zinc sulfide is cubic crystal. White to off-white or yellow powder. The relative density of 4.102, the melting point of l700c. Coefficient of thermal expansion (by volume):100 °c, 0.156;200 °c, 0.386;400 °c, 0.898;800 °c, 1.996. It can be slowly oxidized to sulfate in air. Crystal transition temperature of 1020. Soluble in dilute inorganic acid. Insoluble in water. |
Use | It is used as an analytical reagent, a phosphor, and a photoconductor material. It is also used in the manufacture of dyes, coatings, pigments, glass, curing oils, etc. Used as a variety of filters and laser window coating. |
Risk Codes | 31 - Contact with acids liberates toxic gas |
WGK Germany | 3 |
RTECS | ZH5400000 |
TSCA | Yes |
HS Code | 28309085 |
The product has two crystal forms. Type A zinc sulfide is a colorless hexagonal crystalline powder or a white to off-white or light yellow powder. The relative density was 4. 087. Melting point 1700 °c. Thermal conductivity 25.1W/(m-K). Coefficient of thermal expansion (by volume):100 °c. 0.163;200 °c. 0.395;400 °c, 919,800 °c, 2.146. p-type zinc sulfide is cubic. White to off-white or yellow powder. The relative density is 4. 102 and the melting point is 1700 ℃. Coefficient of thermal expansion (by volume): 100 °c, 0.156;200 °c, 386; 400 °c, 0.898; 800 °c, 1.996. It can be slowly oxidized to sulfate in air. Crystal transition temperature of 1020. Soluble in dilute inorganic acid. Insoluble in water
double decomposition method; The zinc sulfate solution is added into the reactor, and ammonium sulfide is slowly added under stirring for double decomposition reaction to generate zinc sulfide and ammonium sulfate, which is filtered to remove ammonium sulfate, and then concentrated by evaporation, cooling crystallization, centrifugal separation, preparation of zinc sulfide products.
used as an analytical reagent, a phosphor, and a photoconductor material. It is also used in the manufacture of dyes, coatings, pigments, glass, curing oils, etc. Used as a variety of filters and laser window coating.
packed with a barrel or woven bag lined with a polyethylene bag. 50kg or 25kg net weight per barrel (bag). Store in a ventilated, dry warehouse, avoid open air storage. The container must be sealed to prevent moisture. It shall not be stored and mixed with food products and feed. Cover shall be provided during transport. To prevent rain and sun, loading and unloading of light, to prevent packaging rupture. This product is corrosive. Toxic. Can stimulate the skin. Operators should wear work clothes and protective equipment. The workshop should be well ventilated.