• Name

  Calcium sulfide

• EINECS
• CAS No. 20548-54-3
• Density g/cm³
• Solubility
• Melting Point 2000 °C
• Formula CaS
• Boiling Point °Cat760mmHg
• Molecular Weight 72.14
• Flash Point °C
• Transport Information
• Appearance OFF-WHITE POWDER
• Safety A poison via inhalation. Reacts violently with chromyl chloride, lead dioxide, potassium chlorate (mild explosion), potassium nitrate (violent explosion). Incompatible with oxidants. When heated to decomposition it emits toxic fumes of SO_x. See also CALCIUM COMPOUNDS and SULFIDES.
• Risk Codes R31; R36/37/38; R50
• Molecular Structure
• Hazard Symbols Xi,N
• Synonyms Calciumsulfide (8CI); Baumol; C.I. 77245; C.I. Pigment White 9; Calcium monosulfide;Pigment White 9
• PSA 25.30000
• LogP -0.53540

CALCIUM SULFIDE Chemical Properties

The Molecular formula of Calcium sulfide(20548-54-3): CaS
The Molar mass of Calcium sulfide(20548-54-3): 72.143 g/mol
Structure:
Appearance: white crystals hygroscopic
Density: 2.59 g/cm³
Melting point: 2525 °C
Solubility in water: slightly soluble
Solubility: insoluble in alcohol;reacts with acid
Refractive index (nD): 2.137
Other names: Calcium monosulfide,Hepar calcies,Sulfurated lime,Oldhamite.
Calcium sulfide (20548-54-3) is the chemical compound with the formula CaS. Calcium sulfide (20548-54-3) is a white material that crystallizes in cubes like rock salt. Like many salts containing sulfide ions, Calcium sulfide (20548-54-3) typically has an odour of H₂S, which results from small amount of this gas formed by hydrolysis of the salt.

CALCIUM SULFIDE Uses

CALCIUM SULFIDE Production

CALCIUM SULFIDE Safety Profile

A poison via inhalation. Reacts violently with chromyl chloride, lead dioxide, potassium chlorate (mild explosion), potassium nitrate (violent explosion). Incompatible with oxidants. When heated to decomposition it emits toxic fumes of SO_x. See also CALCIUM COMPOUNDS and SULFIDES.
Hazard Codes: Xi,N
Risk Statements: 31-36/37/38-50
31:  Contact with acids liberates toxic gas 
36/37/38:  Irritating to eyes, respiratory system and skin 
50:  Very Toxic to aquatic organisms
Safety Statements: 28-61
28:  After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) 
61:  Avoid release to the environment. Refer to special instructions safety data sheet
RIDADR: UN 3179 4.1/PG 2
WGK Germany: 2
HazardClass: 4.3
PackingGroup: III

CALCIUM SULFIDE Specification