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CAS number: 7786-30-3, 7791-18-6 (hexahydrate)
PubChem: 24584
ChemSpider: 22987
Chebi: 6636
RTECS number: OM2975000
ATC code: A12CC01, B05XA11
Refractive index (nD): 1.675 (anhydrous) 1.569 (hexahydrate)
Molecular Formula: MgCl2
Molar mass: 95,211 g / mol (anhydrous) 203,31 g / mol (hexahydrate)
Appearance: white or colorless crystalline solid
Density: 2.32 g / cm3 (anhydrous) 1.569 g / cm3 (hexahydrate)
Melting point: 714 ° C (987 K) (rapid heating: slow heating leads to decomposition at 300 ° C)
Boiling point: 412 ° 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)
Ethanol Resolution: 7.4 g / 100 mL (30 ° C)

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General Information

This inorganic irregular substance, which has a chemical formula of MgCl2, is partially hydrolyzed when it is heated in alcohol and when it is dissolved in water. .

Molecular Structure

Mg 2 Cl -1

Production and Reactions
According to the Dow method, seawater is the source of magnesium. After the sea water is treated with lime, magnesium hydroxide is obtained. Magnesium chloride is obtained from the reaction of magnesium hydroxide with chloride acid. Pure magnesium chloride (MgCl 2) can be obtained by electrolysis. It can be extracted from salt water or sea water.

Usage areas

It is used in drilling and grinding wheels in cement sector.

It is used in chemical production and dust binding in this sector.

Magnesium chloride is produced as magnesium oil with water mixture and applied on the skin.

It is effective in solving indigestion and constipation problems in medicine.

Production of magnesium metal is used in this sector.

It is used in ex-proof and fireproofing agents, as an additive in textile and paper production, in disinfectants, fire extinguishers and ceramics.

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