M8266 Sigma

Magnesium chloride

anhydrous, ≥98%

Synonym: Magnogene



Related Categories Chemical Synthesis, Essential Chemicals, Inorganic Salts, Magnesium, Magnesium Salts,
Quality Level   PREMIUM
grade   anhydrous
assay   ≥98%
form   powder
impurities   ≤0.5% Insolubles
bp   1412 °C/1 atm(lit.)
mp   714 °C(lit.)
density   2.32 g/mL at 25 °C(lit.)



The appearance of gray/black specks should not affect use.


1 kg in poly bottle

100 g in poly bottle

General description

Also known as chloromagnestite, magnesium chloride is a colorless crystalline solid. It is very hygroscopic in nature. It is soluble in water and alcohol. It can be prepared by heating hydrated magnesium chloride crystals in a current of dry hydrogen chloride or by heating magnesium ammonium chloride.Anhydrous magnesium chloride crystallizes from magnesium chloride hexahydrate as leaflets. It is electrically conductive. The crystal structure of MgCl2 is layer like. The structure is cubic close packing with alternate layers of octahedral holes occupied by Mg2+ ions.

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Safety Information

NONH for all modes of transport
WGK Germany 

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option:
What is Product M8266, Magnesium chloride, soluble in?
Per the Merck Index, 13th Edition, this product is soluble in water (100 mg/ml), yielding a hazy, colorless solution.  Please also note that this could be a very exothermic reaction.
How can you convert Product M8266, Magnesium chloride particles from mesh to a standard measurement?
Using the link,  , you can convert the particle size from mesh to microns or millimeters.
What is the particle size of Product M8266, Magnesium chloride?
According to our supplier, the particle size will range from - 10 + 100 mesh.
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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