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Magnesium Chloride

Magnesium Chloride
Details:
Synonyms: Magnesium dichloride, Magnesium(2+) Dichloride, E511
Chemical Formula: MgCl2
CAS Number: 7786-30-3 (anhydrous), 7791-18-6 (hexahydrate)
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Description
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SDS

Shanghai Dingwujin Chemical Co., Ltd. is one of the leading manufacturers and suppliers of magnesium chloride in China. We are committed to the chemical distribution across Central & Eastern Europe and Ukraine. We warmly welcome you to wholesale customized magnesium chloride made in China here from our factory.

 

Magnesium Chloride

Introduction

Magnesium chloride is an inorganic compound. It occurs as odourless, colourless monoclinic crystals in flakes, granules or lumps, with a bitter taste. It is highly hygroscopic, freely soluble in water and soluble in ethanol. Magnesium chloride forms a range of hydrates such as MgCl2·12H2O and MgCl2·6H2O; magnesium chloride hexahydrate (MgCl2·6H2O) is the relatively stable form under ambient temperature and pressure.

Characteristics

Molar Weight

203.3 g/mol (hexahydrate)

Melting Point

118°C (hexahydrate)

Boiling Point

1.412°C (anhydrous)

Flash Point

non flammable

Density

1.569 g/cm³ (hexahydrate)

Forms

Liquid, White, Crystalline

Product Grades

Food Grade

≥98% magnesium chloride hexahydrate (≥46.4% anhydrous). Strict limits on heavy metals and water-insolubles. Used as tofu coagulant and food additive.

Industrial Grade

Available in Premium, First and Qualified grades; mostly hexahydrate in white/tan flakes. Used for magnesium cement, de-icers and feed additives.

Pharmaceutical Grade

98.0%–101.0% hexahydrate, tightly controlled pH, salts and heavy metals. Serves as electrolyte replenishing raw material for pharmaceuticals.

Electronic Grade

≥99.9% anhydrous magnesium chloride with controlled Ca, Fe, Na, sulphate impurities. For high-strength magnesium alloy electrolysis, premium refractories and electronic-grade MgO precursor.

Standard stock items are industrial grade. For special-grade orders, please contact us for full documentation. 

Uses and Applications

Key applications

  • Plastics and Polymers
  • Wastewater Treatment
  • Food Additive
  • Water Treatment
  • Agricultural
  • Pharmaceuticals
  • Household Industrial
  • Animal Feed
  • Cosmetic Products
  • Medical Products

Industries

Magnesium Chloride Used in the Food Industry

Only food‑grade magnesium chloride can be applied in food processing. It serves as a traditional tofu coagulant (bittern), which quickly curdles soy milk to produce smooth and tender tofu texture. It may also function as an anti‑caking agent for table salt or a nutritional fortifier for magnesium supplementation. It shall be used within permitted dosage ranges and must strictly comply with local food safety regulations. 

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Magnesium Chloride Used in the Chemical Manufacturing Industry

Magnesium chloride, as a basic inorganic raw material, is used to produce magnesium salts such as magnesium hydroxide (flame retardant), magnesium carbonate, and magnesium oxide. It can also be used as a dehydrating agent in organic synthesis.

Magnesium Chloride Used in the Metalworking Industry

Anhydrous magnesium chloride is the sole primary raw material for producing metallic magnesium via the electrolytic process, thereby supporting the magnesium alloy industry chain used in aerospace and automotive applications.

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Magnesium Chloride Used in the Construction Industry

The reaction of magnesium chloride hexahydrate solution with magnesium oxide produces magnesium oxychloride cement (Sorel cement), which is used to manufacture fireproof boards, ventilation ducts, anti-theft manhole covers, and lightweight partition wall panels.

Magnesium Chloride Used in the Pharmaceutical Industry

Under physician supervision, magnesium chloride may be used to correct hypomagnesemia, manage constipation as a hyperosmotic laxative, and inhibit uterine smooth‑muscle contraction for tocolysis purposes. This medicine carries safety risks and contraindications. It must only be administered following professional medical diagnosis and prescription. Self‑medication is strongly discouraged.

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Magnesium Chloride Used in the Feed Industry

As a magnesium fertilizer, it promotes photosynthesis in crops; it is also used as a feed additive to prevent magnesium-deficiency neurological disorders in animals, and in aquaculture to regulate water hardness.

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As a China-based chemical distributor and supplier, 7DCHEM supplies a full range of industrial chemicals with complete SDS and COA documentation. Supported by our dual-warehouse facility in Poland, we serve the following markets: Ukraine, Poland, Czech Republic, Slovakia, Hungary, Romania, Bulgaria, Croatia, Slovenia, Estonia, Latvia, Lithuania, Serbia, Bosnia and Herzegovina, Montenegro, Albania, North Macedonia, Moldova.

For country-specific import regulations, local compliance requirements and delivery lead-times, please visit ourChina-Poland dual-warehouse linkage page.

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