Magnesium sulfate heptahydrate

Magnesium sulfate heptahydrate, also known as sulfur, bitter salt, diarrhea salt and epsom salt, has the chemical formula MgSO4 • 7H2O). It is a white or colorless needle-shaped or oblique columnar crystal, odorless, cool and slightly bitter. It decomposes under heat and gradually removes crystalline water and becomes anhydrous magnesium sulfate. Mainly used in fertilizer production, leather production, printing and dyeing, catalysts, paper production, plastics, porcelain, paints, matches, explosives and fire-resistant materials. Can be used for printing and dyeing fine cotton fabric and silk, as a weighting agent for cotton silk and as a filler for kapok products. , Used medicinally as Epsom salts.