Magnesium Sulfate is a chemical compound, a salt with the formula MgSO4, consisting of magnesium cations Mg2+ (20.19% by mass) and sulfate anions SO2−4. It is a white crystalline solid, soluble in water but not in ethanol.
Magnesium sulfate is usually encountered in the form of a hydrate MgSO4·nH
2O, for various values of n between 1 and 11. The most common is the heptahydrate MgSO4·7H2O, known as Epsom salt, which is a household chemical with many traditional uses, including bath salts.
Mainly used in fertilizer, feed, food, medicine, industry, etc. In the fertilizer industry, it can be used to make magnesium fertilizer and other compound fertilizers. In the food industry, it can be used for lactic, monosodium glutamate, beverage, fresh yeast, magnesium salts, etc. In the pharmaceutical industry, it can be used to make cathartic, antiepileptic, magnesium trisilicate, acetyl-spiramycin, and inosine, etc. In industry, it can be used for leather making, printing, and dyeing, papermaking, porcelain, glass, ABS resin, fire-proof materials; In the chemical industry, it can be used to produce magnesium stearate, phosphoric acid magnesium salt, magnesium oxide, etc.
Application fields :
Animal feeding,
Food Industry
Chemical ındustry, 
Medicine industry
Plastic and rubber industry
Glass, Ceramic, and paper industry
Water Treatment