Product description : Formula MgCl Magnesium chloride is the name for the chemical compound with the formula MgCl2. In addition to the anhydrous form, MgCl2 comes in its various hydrates MgCl2·nH2O. Our magnesium chloride is extracted from sea water. a . Name of product : magnesium chloride b. Price of product : FOB Qingdao,China USD140/MT. c Product origin : China