Magnesium chloride manufacturer, Supplier and Exporter. Magnesium Chloride Magnesium chloride is most commonly used for dust control and road stabilisation. Its second-most common use is ice control.Application: Magnesium chloride is most commonly used for dust control and road stabilisation. Its second-most common use is ice control. In addition to the production of magnesium metal, magnesium chloride also is used for a variety of other applications: fertiliser, mineral supplement for animals, wastewater treatment, wallboard, artificial seawater, feed supplement, textiles, paper, fireproofing agents, cements and refrigeration brine. Mixed with hydrated magnesium oxide, magnesium chloride forms a hard material called Sorel cement.Dose: Magnesium chloride serves as precursor to other magnesium compounds, for example by precipitation: MgCl2(aq) + Ca(OH)2(aq) → Mg(OH)2(s) + CaCl2(aq) It can be electrolysed to give magnesium metal: MgCl2(l) → Mg(l) + Cl2(g)Note: This compound is also used in fire extinguishers: obtained by the reaction of magnesium hydroxide and hydrochloric acid (HCl) in liquid form along with water in gaseous state.