Chloride of magnesium
Magnesium Chloride is a colorless crystal, readily soluble in water. It is a binary inorganic chemical compound of magnesium with chlorine, the magnesium salt of hydrochloric acid.
It occurs naturally in the form of bischofite mineral. In the fossil state, bischofite occurs in the form of a salt granular-crystalline rock.
In pure form, bischofite crystals are water-transparent, but can have white, pink and brown color, depending on the impurities. It contains several tens of microelements, the concentration of some of which is close to the industrially significant. It also contains a small amount of sulfate minerals and a group of hydromicas.
Density 2.316 g / cm³. Melting point - 713 ° C, boiling point - 1412 ° C.None of the modern de-icers can compare with magnesium chloride (bischofite). It is efficient and economical. It prevents ice formation down to -35 ° C, much lower than other de-icers. Bischofite acts quickly: in 15 minutes it melts twice as much ice as sodium chloride. Bischofite is safe for the environment;