Sodium sulfide 24 (inorganic compound)

Sodium sulfide,also known as stinky alkali,stinky soda,or sulfide alkali,is an inorganic compound with the chemical formula Na2S.It appears as a colorless crystalline powder,soluble in water,insoluble in ether,and slightly soluble in ethanol.When it comes into contact with the skin and hair,it can cause burns,so sodium sulfide is commonly known as sulfide alkali.When exposed to air,sodium sulfide releases toxic hydrogen sulfide gas with a foul egg odor.Industrial sodium sulfide has colors of pink,brownish red,and earthy yellow due to impurities.
Chinese name:Sodium sulfide
Foreign name:Sodium sulfide
Nicknames:Sodium sulfide,Stinky alkali,Stinky soda
Chemical formula:Na2S
Molecular weight:78.04
CAS login number:1313-82-2
EINECS login number:215-211-5
Melting point:950℃
Water solubility:186 g/L(20℃)
Density:1.86 g/cm3
Appearance:Colorless crystalline powder
Security description:S26;S45；S61
Hazard symbol:C
Hazard description:R31;R34；R50
UN Dangerous Goods Number:1849