Soda Ash Light/Dense Sodium Carbonate Sodium carbonate, Na2CO3, is the water-soluble sodium salt of carbonic acid. It most commonly occurs as a crystalline heptahydrate, which readily effloresces to form a white powder, the monohydrate. Formula: Na2CO3 Molar mass: 105.9888 g/mol Melting point: 851 °C Density: 2.54 g/cm³ Boiling point: 1,600 °C Soluble in: Water
