Magnesium sulfate is a magnesium-containing compound with the molecular formula MgSO4. It is a commonly used chemical reagent and drying reagent. It is colorless or white crystal or powder, odorless, bitter, and deliquescent. It is clinically used for catharsis, choleretic, anticonvulsant, eclampsia, tetanus, hypertension and other diseases. . It can also be used for leather making, explosives, paper making, porcelain, fertilizer, etc.