
CAS NO.:7791-18-6
Molecular Formula:MgCl₂.6H2O
Product Characteristics:
Magnesium Chloride Hexahydrate is a white crystalline powder, flake or granule, odorless, slightly bitter in taste, and loose in texture. It is easily soluble in water with slight heat release during dissolution, and also soluble in organic solvents such as ethanol and acetone. It has strong hygroscopicity, tends to deliquesce and agglomerate in humid air, and thus needs to be sealed for storage. The aqueous solution is weakly acidic, with a melting point of 116-118℃; when heated to 110℃, it loses part of its crystal water and converts into magnesium chloride dihydrate. It has stable chemical properties and can react with substances such as alkalis and carbonates to form corresponding magnesium salt precipitates.
Technical Data(Executive Standard :FCC&USP41&ACS )
Parameter | Specification FCC13 | Specification | Specification |
Identity A) | Magnesium | Magnesium | - |
B) | Chloride | Chloride | - |
Appearance | Colourless, odourless, very deliquescent flakes or crystals | - | Colorless or white hygroscopic solid |
Solubility | - | Freely soluble in | - |
Assay | 99--105% | 98.0 – 101.0 % | 99.0 – 102.0 % |
Potassium | - | corresponds to test | NMT 0.005 % |
Sulfate | NMT 0.03 % | NMT 0.005 % | NMT 0.002 % |
Insoluble Matter | - | NMT 0.005 % | NMT 0.005 % |
Barium | - | corresponds to test | NMT 0.005 % |
Calcium | - | NMT 0.01 % | NMT 0.01 % |
Aluminum | - | NMT 1 ppm | - |
Nitrate | - | - | NMT 0.001 % |
pH (50 mg/mL) | - | 4.5 - 7.0 | - |
Phosphate | - | - | NMT 5 ppm |
Ammonium | NMT 0.005 % | - | NMT 0.002 % |
Manganese | - | - | NMT 5 ppm |
Sodium | - | - | NMT 0.005 % |
Strontium | - | - | NMT 0.005 % |
Heavy metals(as Pb) | NMT10ppm | NMT 10ppm | NMT 5 ppm |
Iron | - | - | NMT5 ppm |
Applications:
Agriculture and Animal Husbandry
-In agriculture, it is used as a magnesium fertilizer to prevent and control crop magnesium deficiency, promote photosynthesis. It is especially suitable for cash crops such as vegetables and fruit trees, and can also improve alkaline soil.
- In animal husbandry, it serves as a feed additive to supplement magnesium for livestock and poultry, maintaining electrolyte balance. In aquaculture, it regulates the magnesium ion concentration in water bodies, supporting the exoskeleton development of aquatic animals.
Food and Pharmaceutical Industries
-In the food industry, it acts as a coagulant for processing soybean products like tofu and dried tofu. It is also added as a mineral supplement to dairy products and sports drinks.
- In the pharmaceutical field, it is used in the preparation of renal dialysis fluid to regulate electrolyte balance in the human body.
Other Fields
- In cosmetics, it functions as a functional additive, mainly regulating texture and enhancing stability.
- When used in bath salts, it can adjust the texture of bath salts and soothe the skin.
- In the textile industry, it serves as a fixing agent and flame-retardant auxiliary, improving the color fastness and fire resistance of textiles.
- In water treatment, it acts as an auxiliary coagulant to help remove suspended solids in water. It can also be used as a desiccant or deliquescent agent, absorbing moisture from the environment by virtue of its hygroscopicity.
Packaging and Storage
This product is packaged in PP bags, 25kg per bag, and can also be customized according to user requirements. It should be sealed and stored in a cool, dry place away from light, with a shelf life of twenty-four months.
Safety Protection
This product should be kept away from contact with eyes, skin, or clothing. In case of splashing onto the body, immediately rinse with plenty of water.