... , high intensity, gas hard, cementitious material, widely used in national defense, medicine, chemical industry, papermaking, shipbuilding and other ... °C, boiling point 3600 °C. Soluble in acid and ammonium salt, insoluble in water and ethanol. Calcination temperature of 400 ... , the surface area of only 3m2 / g. Deliquescent in the air. It is rigid gas cementing material. IndexTrademarkChemical ...