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Magnesium Oxide

  • Magnesium Oxide

    Molecular Formula MgO
    Molecular Weight 40.30 gm/mol
    Category Antacid; Osmotic laxative
    Storage Condition Store protected from moisture
    Sr. No. Test Parameters Specification / Limits
    1 Description A fine white powder, odorless, 15 gm occupies volume of about 150 ml
    2 Solubility Practically insoluble in water, soluble in dilute acids
    3 Identification Shows test of Magnesium salts
    4 Appearance of solution Solution A is not more intensely colored than Reference solution BS2
    5 Arsenic Not more than 4 ppm
    6 Heavy Metals Not more than 30 ppm
    7 Chloride Not more than 0.125 %
    8 Iron Not more than 0.1 %
    9 Calcium Not more than 1.5 %
    10 Sulphate Not more than 1.0 %
    11 Loss on Ignition Not more than 8.0 %
    12 Soluble Substances Not more than 20 mg
    13 Substance Insoluble in Acetic Acid Not more than 5 mg
    14 Assay as MgO Bet. 98.0 % to 100.5 % (Ignited basis)
    Molecular Formula MgO
    Molecular Weight 40.30 gm/mol
    Category Antacid; Osmotic laxative
    Storage Condition Store protected from moisture
    Sr. No. Test Parameters Specification / Limits
    1 Description A fine white powder amorphous powder.
    2 Solubility Practically insoluble in water, it dissolves in dilute acids with at most slight effervescence
    3 Identification - A
    B
    (A) 15 gm has apparent volume before settling of about 150 ml
    (B) It gives the reaction of Mg salts.
    4 Appearance of solution Solution S is not more intensely colored than Reference solution B2
    5 Arsenic Not more than 4 ppm
    6 Heavy Metals Not more than 30 ppm
    7 Chlorides Not more than 0.15 %
    8 Calcium Not more than 1.5 %
    9 Iron Not more than 0.1 %
    10 Loss on Ignition Not more than 8.0 %
    11 Sulphate Not less than 1.0 %
    12 Soluble Substances Not more than 20 mg
    13 Sub. Insoluble in Acetic acid Not more than 5 mg
    14 Assay as MgO Bet. 98.0 % to 100.5 % (Ignited basis)