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    Magnesium Oxide (food grade,  pharm grade)

    Magnesium Oxide (food grade, pharm grade)

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    Specification :

    1. Magnesium Oxide food grade
    CAS No.: 1309-48-4
    Magnesium Oxide food grade Molecular Formula: MgO
    Magnesium Oxide food grade Molecular Weight: 40.30
    Magnesium Oxide food grade Physicochemical Properties:
    White amorphous powder, odorless, smell-less and nontoxic. It is soluble in acid and ammonium salt solution, difficult to dissolve in water, and insoluble in alcohol. And can be changed into crystal by high-temperature burning above 1000 degree, and into dead-burned magnesium oxide or sintered magnesium oxide above 1500 degree . When meeting with carbon dioxide in the air, it shall produce basic magnesium carbonate.
    Use: Used as food additive, color stabilizing agent and pH regulating agent or supplement of magnesium element in food, and also can be accelerating agent.
    Processing Method: Soda Method, Ammonium Bicarbonate Method
    Technical Specification:
    Items Enterprise standard FAO/WHO
    MgO % mix 96.5-100.5 96
    Identification positive -
    Appearance White powder -
    Insoluble in Hcl Solution % max 0.1 0.05
    loss on ignition % max 2 5
    free alkali % max 2 -
    Fe % max 0.05 -
    soluble salts % max 2 1
    CaO % max 0.5 1
    heavy metals (Pb)% max 30.0ppm 30.0ppm
    As % max 3.0ppm 3.0ppm

    Packaging: 20KG/piece, plastic woven bag lined with polyethylene plastic bag. (Packed at the request of clients)
    2. Magnesium Oxide Pharmaceutical Grade
    Molecular Formula: MgO
    Use: Used as anti-acid agent and laxatives in pharmaceutical industry; used for too much gastric acid and duodenal ulcer; and often used together with calcium carbonate, which easily causing astriction. Meanwhile it can be used as synthetic, intermediates and additives in other chemical industries.

    Processing Method: Soda Method, Ammonium Bicarbonate Method

    Technical Index:
    Items CP2000 USP-24 Enterprise standard
    MgO %e 96.5-100.5 96.0-100.5 96.0-100.5
    Insoluble in HCl solution %d 0.1 0.1 0.1
    LOI %d 5 10 2
    Chloride %d 0.14 - 0.3
    Sulphate %d 0.3 - 0.5
    Fe %d 0.05 0.05 0.05
    Carbonate quality - -
    CaO %d 0.5 1.1 0.5
    Mn %d 0.003 - -
    As %d 0.0005 0.0005 0.0005
    Heavy metals(Pb)%d 0.004 0.004 0.004
    Accumulation density Heavy % - - 0.40g/ml
    Light % - - 0.20g/ml



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