Potassium sulfide anhydrous , ≥40% , 1312-73-8

Synonym(s):
Potassium monosulfide;Potassium sulfide

CAS NO.：1312-73-8

Empirical Formula: K2S

Molecular Weight: 110.26

MDL number: MFCD00043083

EINECS: 215-197-0

PRODUCT Properties

• Melting point: 912°
• Boiling point: 912 °C
• Density: 1.74
• solubility: soluble in H2O, ethanol; insoluble in ethyl ether
• form: Powder
• color: white to yellow
• Water Solubility: very soluble H2O, alcohol, glycerol; insoluble ether [MER06]
• Sensitive: air sensitive, hygroscopic
• Crystal Structure: Reverse CaF2 type
• crystal system: Cube
• Space group: Fm3m
• Lattice constant:
  • a/nm: 0.7407
  • b/nm: 0.7407
  • c/nm: 0.7407
  • α/o: 90
  • β/o: 90
  • γ/o: 90
  • V/nm3: 0.4064
• Stability: Stable, but air-sensitive. Flammable. Contact with acids liberates poisonous hydrogen sulfide. Anhydrous material may be spontaneously combustible.
• CAS DataBase Reference: 1312-73-8(CAS DataBase Reference)
• EPA Substance Registry System: Potassium sulfide (K2S) (1312-73-8)

Description and Uses

Potassium Sulfide is reported to be used as a reactant for the efficient synthesis of variously substituted thiophenes through copper-catalyzed tandem S-alkenylation with 1,4-diiodo-1,3-dienes. It is also used as a reactant for the synthesis of KBi6.33S10 and K2Bi8S13 at high temperature.

Safety

• Symbol(GHS): GHS05,GHS09
• Signal word: Danger
• Hazard statements: H314-H400
• Precautionary statements: P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501-P273-P391-P501
• Hazard Codes: C,N
• Risk Statements: 31-34-50
• Safety Statements: 26-45-61
• RIDADR: 1382
• HazardClass: 4.2
• PackingGroup: II
• Hazardous Substances Data: 1312-73-8(Hazardous Substances Data)