<unk>  or<unk> nesium sulphate (in English-speaking countries other than the US) is a chemical compound, a salt with the formula , consisting of<unk> nesium cations (20.19% by mass) and<unk>  anions . It is a white crystalline solid, soluble in water but not in ethanol.<unk>  is usually encountered in the form of a hydrate , for various values of n between 1 and 11. The most common is the heptahydrate , known as Epsom salt, which is a household chemical with many traditional uses, including bath salts. The main use of<unk>  is in agriculture, to correct soils deficient in<unk> nesium (an essential plant nutrient because of the role of<unk> nesium in chlorophyll and photosynthesis). The monohydrate is favored for this use; by the mid 1970s, its production was 2.3 million tons per year. The anhydrous form and several hydrates occur in nature as minerals, and the salt is a significant component of the water from some springs.
Magnesium sulfate
Potassium bromide
Benzonatate
Heptobarbital
Calcium chloride
Amobarbital
Metkefamide
Mephenytoin