Magnesium chloride
Anhydrous magnesium chloride flakes
Magnesium chloride hexahydrate
Magnesium chloride anhydrous powder
Magnesium chloride-Packing-25KG
Magnesium chloride
Anhydrous magnesium chloride flakes
Magnesium chloride hexahydrate
Magnesium chloride anhydrous powder
Magnesium chloride-Packing-25KG
25kg-packing-palletizing
bigbags-packing-palletizing
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Magnesium Chloride (MgCl₂) – Hexahydrate & Anhydrous Supplier

Model NO. Magnesium chloride
CAS No. 7786-30-3
Formula MgCl₂
Payment L/C, T/T, D/P, D/A, etc.
Production capacity 20000 t/y
Customization Available
Certification CE, RoHS, ISO, SGS, Halal
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Overview

XRD Chemical is a professional Magnesium Chloride manufacturer and supplier in China, offering high-purity MgCl₂ in both hexahydrate flakes (46% MgCl₂) and anhydrous powder (99%) for industrial, food, and pharmaceutical applications.

Magnesium chloride is a colorless, crystalline, and highly hygroscopic inorganic compound that is highly soluble in water and alcohol. It occurs naturally in seawater, salt lakes, and underground brine deposits, and is also obtained through solution mining and solar evaporation. Our hexahydrate form (MgCl₂·6H₂O) is the most widely used grade for de-icing and dust control, while the anhydrous form serves specialized industrial needs.

Key applications include road de-icing and dust suppression, where magnesium chloride outperforms sodium chloride at lower temperatures. It is also used as a coagulant in tofu production (Nigari), a mineral supplement in food and beverages, a raw material for magnesium metal production, a fireproofing agent for wood and textiles, and a binding agent in animal feed and refractory materials. Food grade (E511) and pharmaceutical grade options are available with full documentation.

Why Choose XRD Magnesium Chloride:

• Hexahydrate flakes 46% purity and anhydrous powder 99% purity available
• Food grade (E511, Nigari) and pharmaceutical grade options
• Highly hygroscopic — excellent for dust control and de-icing
• Effective ice melting to -33°C, outperforms sodium chloride
• Used in tofu production, mineral supplements, and magnesium metal production
• 20,000-ton annual capacity ensures supply stability
• Free samples to verify product quality before bulk orders
• COA and MSDS documents available for download

Details

HS Code 2827.31
Synonym Magnesium dichloride, Chloromagnesite (mineral form), E511 (food grade)
Forms Available Anhydrous powder (high purity, hygroscopic), Hexahydrate flakes/crystals (MgCl₂·6H₂O), Liquid brine (for de-icing/dust control)
Density 2.32 g/cm³ (anhydrous solid), 1.56 g/cm³ (hexahydrate)
Purity ≥98% (industrial grade), ≥99% (food/pharmaceutical grade)
Molecular Weight 95.21 g/mol (anhydrous), 203.31 g/mol (hexahydrate)
Appearance Anhydrous: White deliquescent powder, Hexahydrate: Colorless or white crystalline solid
Grades Food Grade (E511) (tofu, supplements), Technical Grade (de-icing, construction), Pharmaceutical Grade (USP/BP standards), Reagent Grade (laboratory use)
Packing Options 25KG, Big bags, Palletizing, Customization

Applications

De-icingWater TreatmentAgricultureDust ControlMedicalConstructionTextile industry

FAQ

Q What is Magnesium Chloride?

Magnesium Chloride (MgCl₂) is a colorless, crystalline hygroscopic compound highly soluble in water. It is obtained from seawater, salt lakes, and underground brine deposits, commonly available as hexahydrate flakes (MgCl₂·6H₂O) with 46% purity or anhydrous powder with 99% purity. It serves applications ranging from de-icing and dust control to food processing and pharmaceuticals.

Q What is the difference between hexahydrate and anhydrous magnesium chloride?

Hexahydrate magnesium chloride (MgCl₂·6H₂O) contains about 53% water of crystallization and has a typical purity of 46% MgCl₂. It is the most common commercial form, used for de-icing, dust control, and food processing. Anhydrous magnesium chloride (MgCl₂) has 99% purity, no crystal water, and is used for magnesium metal production, chemical synthesis, and applications requiring precise moisture control.

Q How effective is magnesium chloride for de-icing compared to other salts?

Magnesium chloride is one of the most effective de-icing agents. It works at temperatures as low as -33°C, well below the effective range of sodium chloride (rock salt, -9°C) and calcium chloride (-25°C). It also releases less chloride into the environment than rock salt and is often marketed as a more environmentally responsible choice for winter road maintenance.

Q Is magnesium chloride safe for food use?

Yes, food-grade magnesium chloride (E511) is approved for use as a coagulant in tofu production (known as Nigari in Japan), as a mineral supplement in beverages and sports drinks, and as a firming agent in food processing. XRD Chemical supplies food-grade and pharmaceutical-grade magnesium chloride that meets FCC, USP, and GMP standards, with Kosher and Halal certifications available.

Q What are the industrial applications of magnesium chloride beyond de-icing?

Beyond de-icing and dust control, magnesium chloride is used as a raw material for producing magnesium metal and magnesium oxide, as a fireproofing agent for wood and magnesium oxychloride cement, as a binding agent in animal feed pellets and refractory materials, as a catalyst support in chemical synthesis, and in textile manufacturing and paper production.

Documents

COA-Magnesium chloride-46%-Industrial.pdf
COA-Magnesium chloride-99%.pdf

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