Tags: Chemical Compound, Chemical Substance.
Magnesium sulfate (or magnesium sulphate) is an inorganic salt (chemical compound) containing magnesium sulfur and oxygen with the formula MgSO4. It is often encountered as the heptahydrate sulfate mineral epsomite (MgSO4·7H2O) commonly called Epsom salt taking its name from a bitter saline spring in Epsom in Surrey England where the salt was produced from the springs that arise where the porous chalk of the North Downs meets non-porous London clay.
