2011年5月15日星期日

Magnesium Chloride

These salts are typical ionic halides, being highly soluble in water......
Product Name: Magnesium Chloride

Abstruct:
Magnesium chloride is the name for the chemical compounds with the formulas MgCl2 and its various hydrates MgCl2(H2O)x. These salts are typical ionic halides, being highly soluble in water. The hydrated magnesium chloride can be extracted from brine or sea water. Magnesium chloride as the natural mineral bischofite is also extracted (solution mining) out of ancient seabeds, for example the Zechstein seabed in northwest Europe. Anhydrous magnesium chloride is the principal precursor to magnesium metal, which is produced on a large scale. Hydrated magnesium chloride is the form usually used in prescription oral magnesium supplements.

Properties
Molecular formula
MgCl2
Molar mass
95.211 g/mol (anhydrous)
203.31 g/mol (hexahydrate)
Appearance
white or colourless crystalline solid
Density
2.32 g/cm3 (anhydrous)
1.569 g/cm3 (hexahydrate)
Melting point
714 ° C (987 K) (on rapid heating: slow heating leads to decomposition from 300  ° C)
Boiling point
1412 ° C (1685 K)
Solubility in water
anhydrous
54.3 g/100 ml (20 ° C)
72.6 g/100 mL (100 ° C)

hexahydrate
157 g/100 mL (20 ° C)
Solubility in ethanol
7.4 g/100 mL (30 ° C)
Refractive index (nD)
1.675 (anhydrous)
1.569 (hexahydrate)

Resource:

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<a href="http://www.ecvv.com">www.ecvv.com</a> is an innovative and comprehensive business portal in China, dedicated to saving costs for Chinese SMEs to find buyers and export to overseas markets.

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