Potassium bicarbonate is a white, crystalline, slightly alkaline and salty substance. It is produced by the passage of carbon dioxide through an aqueous potassium carbonate solution. It is used in medicine as an antacid. It is registered in the FDA under the section of suitable, safe and effective ingredients for OTC antacids. This FDA denomination classifies potassium bicarbonate as a GRAS ingredient.
Solubility Soluble
Formula
CHKO3
Mol. Weight
100.11
CAS #
298-14-6
Form
Powder
State
Liquid; Dry Powder
Functions
Buffering
Stabilizes pH
Traditional Use
A mineral salt with historical use as baking soda (sodium bicarbonate) in various cultures. Potassium bicarbonate is a modern variant used in contemporary cosmetics as a pH buffer and mild exfoliant.