Anhydrous magnesium chloride (MgCl₂) is the dehydrated form of magnesium chloride, appearing as white or grayish granular solid with a density of 2.32 g/cm³ and melting point of 714°C. The compound exhibits fierce hygroscopicity, liquefying through self-dissolution if exposed to air. Argon-filled packaging or immediate processing is required.
Its dominant application lies in electrolytic magnesium production. Molten anhydrous MgCl₂ serves as the sole practical electrolyte for Downs-type cells at 680–720°C. Hexahydrate cannot substitute; residual water decomposes to corrosive HCl and MgO slag. Titanium smelters employ it similarly in the Kroll process to regenerate magnesium reductant.
Production routes reveal compromise. Carnallite mining yields potassium-contaminated material; brine dehydration demands chlorination or organic solvent methods to suppress hydrolysis. Neither delivers reagent-grade product cheaply, pricing anhydrous material well above hydrated forms.
Storage infrastructure separates capable handlers. Nitrogen-blanketed silos or vacuum-sealed steel drums preserve integrity; anything less invites cargo loss to brine.
Product Parameters
|
TEST ITEMS |
TEST STANDARD |
TEST RESULT |
|
MgCl2 |
≥99.0% |
99.32% |
|
WATER INSOLUBLE |
≤0.2% |
0.074% |
|
Fe |
≤0.005% |
0.0023% |
|
Na |
≤0.002% |
0.0017% |
|
Ca |
≤0.002% |
0.0013% |
|
MOISTURE |
≤0.2% |
0.14% |
|
MgO |
≤0.5% |
0.013% |
Detailed Photos

Packaging & Shipping

Packaging
25kg / 20kg bag / according to clients' request, 27MT / 20'FCL without pallet.
Shipping
Strictly Deliver the goods in accodance with the contract.

Application
Anhydrous magnesium chloride serves diverse roles across industries where moisture exclusion matters.
Metal production dominates: electrolytic magnesium smelters and titanium recycling both require water-free feedstock to prevent equipment corrosion and product contamination.
Construction applications utilize its reaction with magnesium oxide to form Sorel cement, valued for rapid setting and fire resistance in industrial flooring and grinding wheels.
Agriculture employs it in foliar fertilizers and soil amendments, particularly for magnesium-deficient orchards and greenhouse crops where chloride tolerance exists.
Food processing licenses it as a firming agent in tofu production, coagulating soy proteins into desired textures.
Winter maintenance blends it with salt for de-icing, effective to −23°C with reduced concrete damage compared to calcium chloride.
Textile and paper industries apply it as a sizing agent and fire retardant, leveraging its hygroscopic binding properties.

Certifications

Company Profile
Shandong Jiuchong Chemical Company Limited was founded in 2016, which is located in Weifang City, Shandong Province, China. We have 228 square meters of office space. Now Jiuchong chemical is a large modern international chemical enterprise with more than 28 series. Since our establishment, the company has gradually established and improved a sound supply chain system, quality monitoring system and service system, ensuring products quality and service.
At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, including magnesium chloride, sodium metabisulfite, sodium bicarbonate, calcium chloride, magnesium sulfate, polyaluminium chloride, aluminium sulfate, industrial salt, soda ash etc.

FAQ

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