Magnesium chloride is a chloride, chemical formula MgCl2.Colorless and deliquescent crystals.

Magnesium chloride

Magnesium chloride

These salts are typically ionic halides, soluble in water.Magnesium chloride hydrate can be extracted from brine or sea water.Usually with 6 molecules of crystalline water.But lose crystal water when heated to 95 ℃.Above 135 ℃ when starts to break down and release the hydrogen chloride (HCl) gas.Industrial raw material for the production of magnesium.Found in seawater and brine.Magnesium chloride hydrate is a substance commonly used in prescription oral magnesium supplements.