... 99.1%,99.2%,etc.. high quality and perfect service Potassium CarbonateIntroduction: K2CO3, the relative molecular weight is 138.19 ... carbonate when it contacts carbon dioxide in the air. Use: Potassium Carbonate is an important abio industrial chemicals, which is mainly ... , cine film, porcelain enamel, printing and dyeing, potassium and other fields. When potassium used in foods is put into food of ...