e,E509IdentifiersCAS number10043-52-4 Y,  22691-02-7 (monohydrate)  10035-04-8 (dihydrate)  25094-02-4 (tetrahydrate)  7774-34-7 (hexahydrate)PubChem24854ChemSpider23237 YUNIIOFM21057LPEC number233-140-8DrugBankChEBICHEBI:3312RTECS numberEV9800000SMILES [Ca+2].[Cl-].[Cl-]InChI InChI=1/Ca.2ClH/h;2*1H/q+2;;/p-2InChI key UXVMQQNJUSDDNG-NUQVWONBAGPropertiesMolecular formulaCaCl2අණුක ස්කන්ධය110.98 g/mol (anhydrous)  128.999 g/mol (monohydrate)  147.014 g/mol (dihydrate)  183.045 g/mol (tetrahydrate)  219.08 g/mol (hexahydrate)Appearancewhite solidDensity2.15 g/cm3 (anhydrous)  1.835 g/cm3 (dihydrate) 1.83 g/cm3 (tetrahydrate)  1.71 g/cm3 (hexahydrate)Melting point772 °C (anhydrous)  260 °C (monohydrate)  176 °C (dihydrate)  45.5 °C (tetrahydrate)  30 °C (hexahydrate) [1]Boiling point1935 °C (anhydrous) Solubility in water74.5 g/100mL (20 °C)  59.5 g/100 mL (0 °C)Solubility in alco