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    HomeProductsBasic & Fine ChemicalsInorganic ChemicalsMagnesium Chloride Hexahydrate CAS 7791-18-6
    • Magnesium Chloride Hexahydrate CAS 7791-18-6

    Magnesium Chloride Hexahydrate CAS 7791-18-6

    Magnesium Chloride Hexahydrate (CAS 7791-18-6) is a highly soluble hydrated inorganic salt utilized as a premium de-icing agent and a coagulant in food processing. Chemically identified as Magnesium dichloride hexahydrate, this colorless or white crystalline flake functions to suppress dust on unpaved roads and coagulate soy milk into tofu. As a stable Magnesium(II) chloride hydrate, it is extensively utilized in the production of Sorel cement (magnesia cement) and fireproofing boards due to its ability to form strong chemical bonds with magnesium oxide. We ensure bulk supply capabilities for this material, providing access to competitive factory pricing and customized specifications to meet specific concentration requirements (e.g., 46% - 47% flakes). Full technical documentation, including MSDS, TDS, COA, is available to support compliance and safety protocols.

    • CAS: 7791-18-6
    • Synonyms: Magnesium dichloride hexahydrate, Magnesium chloride 6H2O, Hydrated magnesium chloride, Bischofite (refined)
    • Einecs: 232-094-6
    • Molecular Formula: MgCl2·6H2O
    • Grade: Industrial Grade / Tech Grade
    • Package: 25kg PP/PE bag, 50kg bag, or 1000kg Jumbo bag (Customization available)
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    Product Description

    Magnesium Chloride Hexahydrate is a white or colorless crystalline solid, typically supplied in the form of flakes, pellets, or granules. It is highly hygroscopic and extremely soluble in water. Derived from natural brine or sea water processing, our Magnesium Chloride is a crucial raw material in various industries, ranging from construction materials (Sorel cement) to winter road maintenance.

    Our manufacturing process ensures strict quality control, minimizing the content of sulfates and alkali metals to provide a consistent and reliable raw material for your production needs.

    1 Physicochemical Properties
    2 Applications
    3 Storage Conditions
    4 Safety Precautions

    Physicochemical Properties

    The following specifications represent our typical industrial-grade export standard:

    PropertySpecification / Value
    AppearanceWhite to Light Yellow Flakes or Crystals
    Main Content (MgCl2)≥ 46.0%
    Magnesium Chloride Hexahydrate (MgCl2·6H2O)≥ 98.0%
    Calcium (Ca2+)≤ 0.25%
    Sulfate (SO4 2-)≤ 0.40%
    Alkali Metal Chlorides (K+ & Na+)≤ 0.80%
    Water Insolubles≤ 0.10%
    DensityApprox. 1.56 g/cm³
    Melting Point~117°C (Decomposes)
    pH Value (in water solution)6.0 – 8.0
    SolubilityEasily soluble in water and ethanol

    Applications

    Magnesium Chloride Hexahydrate is a versatile chemical used in numerous sectors:

    1. De-icing and Snow Removal: Highly effective for melting ice on roads and sidewalks at low temperatures, working faster than sodium chloride.
    2. Dust Control: Used on unpaved roads and mining sites to suppress dust and stabilize soil due to its hygroscopic nature.
    3. Construction Materials: A key ingredient in the production of Magnesium Oxychloride Cement (Sorel Cement), used for industrial flooring, fireproof boards, and wall panels.
    4. Textile & Paper Industry: Acts as a dressing agent and helps in fireproofing fabrics.
    5. Water Treatment: Used as a coagulant in wastewater treatment processes.
    6. Fire Extinguishing Agents: Used in the production of fire retardants.
    7. Agriculture: Used as a magnesium supplement in fertilizers.

    Storage Conditions

    • Moisture Sensitivity: The product is highly hygroscopic (absorbs moisture from the air). It must be stored in a dry, cool, and well-ventilated area.
    • Packaging: Keep containers tightly closed when not in use. Do not store in open bags.
    • Protection: Protect from direct sunlight and rain during transportation and storage.
    • Compatibility: Store away from strong oxidizing agents and metals.

    Safety Precautions

    • Handling: Avoid direct contact with skin and eyes. Wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and a dust mask if handling powder.
    • Inhalation: Avoid breathing dust. Use in a well-ventilated area.
    • First Aid:
      • Eye Contact: Rinse immediately with plenty of water for at least 15 minutes.
      • Skin Contact: Wash off with soap and plenty of water.
      • Ingestion: Rinse mouth with water. Do not induce vomiting without medical advice.
    • Ecological Info: Avoid releasing large quantities into natural water bodies as it may alter salinity levels.

    FAQ - Technical & Supply Chain

    • Q:

      What specific chemical composition defines Magnesium Chloride Hexahydrate CAS 7791-18-6 for commercial use?

      A: Magnesium Chloride Hexahydrate (CAS 7791-18-6) is defined as the hydrated crystal form of magnesium dichloride containing six water molecules, supplied as deliquescent flakes or pellets distinct from the anhydrous powder.
    • Q:

      Is this product suitable for dust control applications?

      A: Yes, this material is typically applied in road maintenance and mining operations as a dust suppressant, where its hygroscopic nature allows it to absorb moisture from the air and bind soil particles effectively.
    Documents

    Documents and Product Support

    For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

    • COA for batch-based quality reference
    • TDS for key physical and chemical information
    • SDS / MSDS for handling, storage, and safety reference
    • Packing information for sample, trial, and bulk orders
    • Technical communication based on application and specification requirements
    Quotation

    Information to Confirm Before Quotation

    Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

    • Product name and CAS number
    • Application or intended end use
    • Required purity, grade, or specification
    • Sample quantity, trial order, or bulk demand
    • Preferred packing form or net weight
    • Destination country or port
    • Required documents or compliance expectations
    Storage & Handling

    Packaging, Storage, and Handling Notes

    Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

    Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

    Supply Support

    Sample, Bulk Order and Repeat Supply Support

    Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

    For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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    Use our contact form to send us your questions, suggestions or comments. We will respond as soon as possible.

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    Tags:

    Deicing Agent Inorganic Chloride Magnesium Salt Nutrient Salt

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