Potassium bicarbonate

A12BA04

Odorless and colorless crystalline powder

Fixed

2.17 g · cm -3

Decomposition at about 200 ° C

Slightly soluble in water: 333 g · l-1 (at 20 ° C)

-963.2 KJ / mol

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Potassium salt is a salt of carbonic acid. It decomposes rapidly above a temperature of about 50 ° C, where it splits off water and carbon dioxide. This produces potassium carbonate. Physiologically, it is considered safe, it is also included as a food additive E501 in food.

Use

Potassium hydrogen carbonate is used as a release agent and acidity regulator in food. Further, it is used as an artificial leavening agent in baking soda. When baking the cake mix it drives by it decomposes by heat according to the following equation by elimination of water and carbon dioxide into potassium carbonate.

Production

Potassium hydrogen carbonate is formed when potassium carbonate is dissolved in water. With formation of potassium hydroxide and potassium hydroxide reacts alkaline:

CAS registry number PubChem Anatomical Therapeutic Chemical Classification System CRC Handbook of Chemistry and Physics Integrated Authority File

460982