English name : magnesium sulfate English: epsom salts CAS No.: 7487-88-9 Molecular formula: MgSO47H2O Molecular weight: 246.48 Physical character: Trivial colourless needle-like or tilted shape crystal. There be no bad smell , taste bitter, relative density 1.68. Easy to dissolve in water, is tiny dissolve in alcohol and glycerin. Easy efflorescence become powder in the air (dry) , losing all of its crystal water become magnesium sulfate anhydrous when heating, this product does not contain any deleterious foreign substance