Properties
Chemical formula MgCl2
Molar mass 95.211 g/mol (anhydrous)
203.31g/mol(hexahydrate)
Appearance white or colourless crystalline solid
Density 2.32g/cm3 (anhydrous)
1.569g/cm3 (hexahydrate)
Melting point 714 °C (1,317 °F; 987 K) 117 °C (243 °F; 390 K) (hexahydrate)
on rapid heating: slow heating leads to decomposition from 300 °C (572 °F; 573 K)
Boiling point 1,412 °C (2,574 °F; 1,685 K)
Solubility in water anhydrous 52.9 g/100 mL (0 °C)
54.3 g/100 mL (20 °C)
72.6 g/100 mL (100 °C)
