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Magnesium chloride hexahydrate

Product Name:
Magnesium chloride hexahydrate
CAS No.
7791-18-6
Chemical Name:
Magnesium chloride hexahydrate
CBNumber:
CB8681652
Molecular Formula:
Cl2H12MgO6
Formula Weight:
203.3
MOL File:
7791-18-6.mol
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Magnesium chloride hexahydrate Property

Melting point:
117 °C
Density 
1.569
storage temp. 
Store at RT.
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
Solid
color 
White to slightly gray
Specific Gravity
1.569
Odor
Odorless
PH
4.5-7.0 (50g/l, H2O, 20℃)
PH Range
7
Water Solubility 
2350 g/L (20 ºC)
λmax
λ: 260 nm Amax: 0.030
λ: 280 nm Amax: 0.025
Sensitive 
Hygroscopic
Merck 
14,5662
Stability:
Stable. Incompatible with strong oxidizing agents. Protect from moisture.
InChIKey
DHRRIBDTHFBPNG-UHFFFAOYSA-L
CAS DataBase Reference
7791-18-6(CAS DataBase Reference)
EPA Substance Registry System
Magnesium chloride, hexahydrate (7791-18-6)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
24/25-36-26
WGK Germany 
1
RTECS 
OM2975000
3
TSCA 
Yes
HS Code 
28273100
Toxicity
LD50 orally in Rabbit: 8100 mg/kg
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N-Bromosuccinimide Price More Price(57)

Sigma-Aldrich Gold
Product number:
13152
Product name :
Magnesium chloride hexahydrate
Purity:
puriss., meets analytical specification of Ph. Eur., BP, FCC, E511, 99-101%, ≤0.0001% Al
Packaging:
1kg
Price:
$200
Updated:
2019/12/02
Buy:
Buy
Sigma-Aldrich Gold
Product number:
13152
Product name :
Magnesium chloride hexahydrate
Purity:
puriss., meets analytical specification of Ph. Eur., BP, FCC, E511, 99-101%, ≤0.0001% Al
Packaging:
2.5kg
Price:
$247
Updated:
2019/12/02
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Alfa Aesar Gold
Product number:
010797
Product name :
Magnesium chloride hexahydrate, Puratronic?, 99.999% (metals basis)
Packaging:
100g
Price:
$485
Updated:
2020/06/24
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Alfa Aesar Gold
Product number:
010797
Product name :
Magnesium chloride hexahydrate, Puratronic?, 99.999% (metals basis)
Packaging:
25g
Price:
$164
Updated:
2020/06/24
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Sigma-Aldrich Gold
Product number:
63033
Product name :
Magnesium chloride hexahydrate
Purity:
tested according to Ph.Eur.
Packaging:
1kg-f
Price:
$174
Updated:
2019/12/02
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Buy
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Magnesium chloride hexahydrate Chemical Properties,Usage,Production

Description

Magnesium chloride hexahydrate is the hydrated form of magnesium chloride. Magnesium chloride is a mineral supplement used to prevent and treat low amounts of magnesium in the blood and a versatile compound with a number of uses in food preparation, health and personal well-being areas. Magnesium chloride is also used in road care, to synthesize other magnesium compounds, to remove dyes and industrial dye wastes, for the dust control, in the textile production, and as an industrial dye and dye waste remover. Magnesium chloride hexahydrate is used as catalyst for organic synthesis, e.g. 3,4‐Dihydropyrimidin‐2‐(1H)‐one. Magnesium chloride hexahydrate is also a promising heat/thermal storage material.

References

[1] Radim Pilar, Ladislav Svoboda, Pavla Honcova and Lucie Oravova, Study of magnesium chloride hexahydrate as heat storage material, Thermochimica Acta, 2012, vol. 546, 81-86
[2] Guo-Lin Zhang and Xiao-Hua Cai, Magnesium Chloride Hexahydrate Catalyzed One‐Pot Synthesis of 3,4‐Dihydropyrimidin‐2‐(1H)ones Under Solvent‐Free Conditions, Synthetic Communications, 2006, 829-833
[3] BH Tan, TT Teng and AKM Omar, Removal of dyes and industrial dye wastes by magnesium chloride, Water Research, 2000, vol. 34, 597-601

Chemical Properties

White crystalline powder

Uses

Used in adjustment of ion strength.

Definition

ChEBI: A hydrate that is the hexahydrate form of magnesium dichloride.

Purification Methods

Crystallise it from hot water (3.3g/mL) by cooling. Dry it in a vacuum at ~175o, or heat the hydrate in a stream of HCl. When the hydrate is heated above 180o it is hydrolysed to the oxychloride (Mg2OCl2). It is deliquescent; store it in a well-stoppered vessel. [Bryce-Smith Inorg Synth VI 9 1960, Ehrlich in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 908 1963.]

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Description References