K2CO3 is the chemical formula for Potassium Carbonate, which is an inorganic salt composed of potassium and carbonate ions. It is a white, odorless powder that is soluble in water and has a variety of uses, including as a food additive, in glassmaking, and in the production of soaps and detergents. Potassium Carbonate is also known as POTASH, which is derived from the Middle English word potaschen, meaning 'to sprinkle or to fertilize'.