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7773-03-7

Name POTASSIUM HYDROGEN SULFITE
CAS 7773-03-7
EINECS(EC#) 231-870-1
Molecular Formula HKO3S
MDL Number MFCD00673725
Molecular Weight 120.17
MOL File 7773-03-7.mol

Chemical Properties

Appearance White, crystalline powder; sulfur diox- ide odor. Soluble in water; insoluble in alcohol.
Melting point  decomposes at 190℃ [HAW93]
solubility  insoluble in ethanol
form  white crystalline powder
color  white crystals, crystalline powder
Water Solubility  soluble H2O; insoluble alcohol [HAW93]
Uses
Reduction of various organic compounds; purification of aldehydes and ketones, iodine, sodium hydrosulfite; antiseptic; source of sulfurous acid, particularly in brewing; analytical chemistry; tanning; bleaching straw and textile fibers; chem- ical preservative in foods (except meats and other sources of vitamin B 1 ).
CAS DataBase Reference 7773-03-7
EPA Substance Registry System Sulfurous acid, potassium salt (1:1) (7773-03-7)

Safety Data

Hazardous Substances Data 7773-03-7(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

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