» Use in ice control.
Picture of truck applying liquid de-icer (magnesium chloride) to city streets. Magnesium chloride is used for low-temperature de-icing of highways, sidewalks, and parking lots. When highways are treacherous due to icy conditions, magnesium chloride helps to prevent the ice bond, allowing snow plows to clear the roads more efficiently.
» Use in hydrogen storage.
Magnesium chloride has shown promise as a storage material for hydrogen. Ammonia, which is rich in hydrogen atoms, is used as an intermediate storage material. Ammonia can be effectively absorbed onto solid magnesium chloride, forming Mg(NH3)6Cl2. Ammonia is released by mild heat, and is then passed through a catalyst to give hydrogen gas.
» Gardening and Horticulture.
Because magnesium is a mobile nutrient, magnesium chloride can be effectively used as a substitute for magnesium sulfate (Epsom salt) to help correct magnesium deficiency in plants via foliar feeding. It is advisable to use a smaller dose when using magnesium chloride compared to the recommended dose of magnesium sulfate (20 g/L).
» Use in dust and erosion control.
Magnesium chloride is one of many substances used for dust control, soil stabilization and wind erosion mitigation.
» As a Dust Suppressant.
Due to its extreme hygroscopic nature and being environmentally-friendly, it is used in many countries as a dust suppressant or dust binder on dusty roads, unpaved helipads, inside mine shafts and tunnels, open-cast iron ore and coal mines or where volcanic dust could pose a problem, in thickly wooded areas where flying dust could spoil trees etc, by using a solution or MgCl26H20 with water. Application is by simple apparatus of a road tanker with a spray boom.
» As A De-icing Compound.
One of the major uses all over the world is as a de-icing compound. Being completely environmentally-friendly, it is used extensively to keep outdoor surfaces around hotels, private homes as well as roads, etc. free of ice, especially at ski-resorts in Europe, Korea and Japan. The other de-icers which have high sodium content can pollute underground water resources and destroy vegetation.
Extensively used for the treatment of Hypomagnesaemia (Grass Tetany or Grass Staggers. Recent research has proved that this condition, mainly in cattle and sheep follows after winter when a herd is turned out to lush spring grass. Hypomagnesaemia is more noticeable in cattle grazing on pastures which have recently received a dressing of nitrogenous or potash fertilizer. By spraying a solution of magnesium chloride on grass or even directly on the animal or mixed into the cattle feed, this condition is prevented and has proved to be extremely beneficial to livestock. Magnesium Chloride being environmentally-friendly, will not damage either grasslands or the cattle.
» Industrial Flooring.
It is used in industrial floorings, ship decks, railway coach floorings,
hospital floors and for aircraft hangar floors, ammunition factory floors, missile silos and underground armament factories and bunkers. The famous Siegfried Line of WW-II on the border of Germany and France had its entire floor rendering of this cement.
» Medical Benefits.
Magnesium Chloride is used in the manufacture of Magnesium Hydroxide Mg(OH)2 for further preparation of antacids for relieving stomach ailments and ulcers.
From research by well-known French surgeon, Prof. Pierre Delbet, MD, as reported by Dr. Walter Last, who himself claims that “magnesium chloride is nothing short of a miracle mineral in its healing effect on a wide range of diseases as well as in its ability to rejuvenate the ageing body”. Prof. Delbet’s list includes diseases of the digestive tract such as colitis and gall bladder problems, Parkinson’s disease, tremors and muscle cramps, acne, eczema, psoriasis, warts and itching skin, impotence, prostatic hypertrophy, cerebral andcirculatory problems,asthma, hay fever, urticaria and anphylactic reactions. Hair and nails became stronger and healthier, and patients have more energy.
In recent years Dr. Vergini and others have confirmed these earlier results and have added more diseases to the list of successful uses, acute asthma attacks, shock, tetanus, herpes zoster, acute and chronic conjunctivitis, optic neuritis, rheumatic diseases, many allergic diseases, chronic fatigue syndrome and beneficial effects in cancer therapy. In all these cases magnesium chloride had been used giving much better results than other magnesium compounds.
It is proved that many of the symptoms of Parkinson’s disease can be overcome with high magnesium supplementation, shaking can be prevented and rigidity eased.
» Magnesium for the heart:
Adequate levels of magnesium are essential for the heart muscles. It was found that those who die from heart attacks have very low magnesium but high calcium levels in their heart muscles. Patients with coronary heart disease who have been treated with large amounts of magnesium survived better than those with other drug treatment. Magnesium dilates the arteries of the hearts and lowers cholesterol and fat levels.
» As a Flame Retardant.
One of the most important uses of Magnesium Hydroxide today in Europe and America is as a flame retardant in polymers. Recent regulation in the West to ban or curtail the use of halogenated retardants (considered carcinogenic) has increased the demand for Mg(OH)2 retardants, going up to several thousand tonnes per year. Mg(OH)2 withstands up to 340°C and has been used as an effective flame retardant particularly for poly- oleofins. The Asahi Glass company in Tokyo manufacture a range of magnesium hydroxides for flame retardant applications and are potential customers for magnesium chloride. The main suppliers in Europe are Kyowa Chemical Industry (Kagowa) of Japan.
» Impact-proof, fire-retardant, anti-static flooring.
Another major use is in the preparation of oxychloride cements (3MgO MgCl2 11H2O) which are made up in carefully balanced proportions of Magnesium Chloride and a dry mix consisting of calcined magnesium oxide (MgO) or Magnesite, with fillers and other aggregates depending upon the requirement. These cements are fast setting and form a dense stone like product of smooth texture which is very strong, impact resistant, fire retardant and non sparking (antistatic).
Magnesium oxychloride Cement (3MgO MgCl2> 11H2>O) is a tough stone-like, fire-proof compound that can be used for light or heavy floorings. Having a tremendous load bearing capacity. It can withstand vibrations from heavy iron wheel movement without any trace of cracks or fissures. It is ideal for coating wooden floors, theatre stages and renovating old lofts. Oil and grease stains can be rubbed off easily without leaving any marks on it.