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Merck
CN

930970

Magnesium chloride hexahydrate

99.9% trace metals basis

Synonym(s):

Magnesium dichloride hexahydrate

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About This Item

Linear Formula:
MgCl2 · 6H2O
CAS Number:
7791-18-6
Molecular Weight:
203.30
UNSPSC Code:
12352302
NACRES:
NA.21
MDL number:
MFCD00149781
Assay:
99.9% trace metals basis
Form:
powder, crystals or chunks
Solubility:
acetone: slightly soluble
alcohols: slightly soluble
water: soluble (highly soluble)

Key Documents

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Product Name

Magnesium chloride hexahydrate, 99.9% trace metals basis

InChI

1S/2ClH.Mg.6H2O/h2*1H;;6*1H2/q;;+2;;;;;;/p-2

SMILES string

O.O.O.O.O.O.Cl[Mg]Cl

InChI key

DHRRIBDTHFBPNG-UHFFFAOYSA-L

assay

99.9% trace metals basis

form

powder, crystals or chunks

reaction suitability

core: magnesium

mp

117 °C

solubility

acetone: slightly soluble
alcohols: slightly soluble
water: soluble (highly soluble)

Quality Level

100

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General description

Magnesium chloride hexahydrate is a colorless salt. The salt is soluble in water and slightly soluble in ethanol, acetone, and pyridine. Chemically, magnesium chloride is a weak Lewis acid.
Magnesium chloride is extracted from naturally occurring brine, for example by solar evaporation of sea water, and purified by solution chemistries.

Application

Magnesium chloride is used as a source of the divalent magnesium ion, often to control zeta potential and ionic strength. Commonly, magnesium chloride is used in water desalination experiments, particularly research investigating nanofiltration membranes. In addition, researchers have used magnesium chloride to alter the stability of colloidal suspensions, for example driving the coagulation of graphene oxide. Magnesium chloride has also been used to control the interlayer spacing of graphene-oxide membranes

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV9207
MKCS4314

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Ion sieving in graphene oxide membranes via cationic control of interlayer spacing.
Chen, L., et al.
Bio/technology (Nature Publishing Company), 550, 380?383-380?383 (2017)
Aggregation and Stability of Reduced Graphene Oxide: Complex Roles of Divalent Cations, pH, and Natural Organic Matter
Chowdhury, I., et al.
Environmental Science & Technology, 49, 10886-10893 (2015)

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