Magnesium sulfate heptahydrate is an important inorganic chemical product with a wide range of uses. Mainly used in fertilizers, tanning, printing and dyeing, catalysts, paper, plastics, porcelain, pigments, matches, explosives and fireproof materials, can be used for printing and dyeing thin cotton cloth, silk, as a cotton silk aggravating agent and filler for kapok products, used as a laxative salt in medicine.
