White powder or tiny crystalls, nodorousand salty,easily soluble in water,insolublein alcohol,presenting slightly alkalinity,decomposed when heating. Decomposed slowly when exposd to moist air. Molecular formular : NaHCO3

Used as food fermentation,detergent ingredient,carbondoxide foamer,pharmacy,leather,ore milling and metallurgy,detergent for wool,exting uisher and metal heat-treating,fiber and rubber industry, etc.