Synonyms

Sodium bicarbonate, sodium acid carbonate, bicarbonate of soda, baking soda

Definition

Chemical name

Sodium hydrogen carbonate

Einecs

205-633-8

Chemical formula

NaHCO₃

Molecular weight

84,01

Assay

Content not less than 99 % on the anhydrous basis

Description

Colourless or white crystalline masses or crystalline powder

Identification

Between 8,0 and 8,6

Soluble in water. Insoluble in ethanol

Purity

Loss on drying

Not more than 0,25 % (over silica gel, 4h)

Ammonium salts

No odour of ammonia detectable after heating

Arsenic

Not more than 3 mg/kg

Lead

Not more than 5 mg/kg

Mercury

Not more than 1 mg/kg