Potassium Carbonate, also known as POTASH, is a white, odorless powder that is used in a variety of industries. It is an alkaline salt composed of potassium and carbonate ions and is often used as a fertilizer, food additive, and in the production of glass, soap, and other products. Potassium Carbonate is also used in the manufacture of certain types of batteries and in the production of some pharmaceuticals.