Zinc Chloride 98%Molecular formula------ZnCl2Molar mass------136.29 g/molDensity------2.907 g/cm³, solidMelting point------275 °C (548 K)Boiling point------756 °C (1029 K)Solubility in water------432 g/100 mL (25 °C)Appearance:White crystalline solid.Zinc chloride is the name of chemical compound with the formula ZnCl2 and its hydrates. Zinc chlorides, of which at nine crystalline forms are known, are colorless or white and highly soluble in water. ZnCl2 itself is hygroscopic and even deliquescent.