Potassium carbonate inorganic chemical CAS 584-08-7 applied in glass fabrication Product Introduction Potassium carbonate, CAS registry number 584-08-7, also known as potash, is anhydrous inorganic alkaline compound. This white crystalline solid features strong hygroscopic behaviour. It dissolves well in water while showing low solubility in ethanol. Its aqueous solution presents alkaline property. The substance participates in neutralization and precipitation reactions,