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Magnesium Chloride Magnesium chloride is the name of the chemical compound with the formula MgCl 2 and its various hydrates MgCl 2 (H 2 O) x. Anhydrous MgCl2 contains 25.5% by mass of elemental magnesium. These salts are typical ionic halides that are highly soluble in water. Hydrated magnesium chloride can be extracted from brine or seawater. In North America, magnesium chloride is primarily produced from the brine of the Great Salt Lake. It is extracted from the Dead Sea by a similar process. Jordan Valley. As the natural mineral bischophyte, magnesium chloride is also mined (by solution mining) from ancient seabeds, for example the Zechstein seabed in northwestern Europe. Some magnesium chloride is made from the solar evaporation of seawater. Anhydrous magnesium chloride is the principal precursor of magnesium metal produced on a large scale. Hydrated magnesium chloride is the most readily available form. MgCl2 crystallizes in the cadmium chloride motif with octahedral Mg centers.
Packaging: 100 gr (0,22 lb) - 1 kg (2,20 lb) - 25 kg (55,12 lb)
Several hydrates are known with the formula MgCl 2 (H 2 O) x, and each loses water at higher temperatures: x = 12 (−16.4 °C), 8 (−3.4 °C), 6 (116.7 °C), 4 (181 °C) C), 2 (about 300 °C). In the hexahydrate, Mg2+ is also octahedral, but coordinated with six water ligands Thermal dehydration of hydrates MgCl 2 (H 2 O) x ( x = 6, 12) does not occur directly. Anhydrous MgCl 2 is produced industrially by heating the hexamine complex [Mg(NH 3 ) 6 ] 2+ chloride salt. Anhydrous MgCl2 is a Lewis acid, although weak, as evidenced by the presence of some hydrates. In the Dow process, magnesium chloride is regenerated from magnesium hydroxide using hydrochloric acid: Mg(OH) 2 ( s ) + 2 HCl( aq ) → MgCl 2 ( aq ) + 2 H 2 O ( l ) It can also be prepared from magnesium carbonate by a similar reaction. Derivatives with tetrahedral Mg 2+ are less common. Examples include salts of (N(C2H5)4)2MgCl4 and adducts such as MgCl2 (TMEDA).
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