Magnesium chloride

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Description

Soft deliquescent crystals that are water-soluble. In a closed environment, a saturated aqueous solution of magnesium chloride will form an equilibrium at a relative humidity level of about 34% (20C). Magnesium chloride salt is also used for fireproofing wood, treating Cotton and Wool, as well as for the manufacture of Parchment paper.

Synonyms and Related Terms

magnesium chloride hexahydrate; Magnogene

Risks

Toxic by ingestion. Skin or eye contact may cause irritation.

ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water and ethanol. Evolves substantial heat when dissolved in water.

Deliquescent point at 20C is 33.6 % RH (see saturated salt solutions)

Composition MgCl2 or MgCl2-6H2O
CAS 7786-30-3
Melting Point 712
Density 2.32-2.41
Molecular Weight mol. wt. = 95.2
Boiling Point 1412

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