CAS number 10034-99-8.
Molecular formula MgSO4.7H2O.
Molar mass 246.47 g/mol.
Appearance White crystalline solid.
Density 1.68 g/cm3.
Melting point 150 °C.
Solubility in water 71 g/100 mL (20 °C).
Solubility 1.16 g/100 mL (18 °C, ether).
Insoluble in Acetone and slightly soluble in alcohol and glycerol.