Calcium Chloride is a white deliquescent powder or lumps/fragments which is soluble in water and ethanol, with melting point at 782 C, boiling point at 1600 C and specific gravity of 2.15. Mono, Di and Hexahydrate forms are existing. But hexahydrate form loses 4H2O at room temperature.Therefore only dihydrate and anhydrous forms are important commercially.