E501ii - Potassium hydrogen carbonate

Functions: Stabiliser

Potassium carbonate -K2CO3- is a white salt, which is soluble in water -insoluble in ethanol- and forms a strongly alkaline solution. It can be made as the product of potassium hydroxide's absorbent reaction with carbon dioxide. It is deliquescent, often appearing a damp or wet solid. Potassium carbonate is used in the production of soap and glass. - Wikipedia