Potassium Carbonate Granular is the organic substance with the chemical formula K2CO3. It is a white salt that dissolves in liquid and produces a highly alkaline solution. This is effervescent and frequently manifests as a wet or soggy solid. Glass and soap manufacture are the two main industries that utilize potassium carbonate. This is the main ingredient of potash, as well as the more refined pearl ash or tartaric salts.