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Magnesium Trisilicate

  • Magnesium Trisilicate

    Molecular Formula Mg2Si3O8,xH2O
    Category Antacid
    Storage Condition Store protected from moisture

    Application

    Used as Antacid in Antacid Formulations. Also useful Antioxidant, Decolorizing Agent and industrial odor absorbent.

    Sr. No. Test Parameters Specification / Limits
    1 Description A fine white, odorless powder, slightly hygroscopic.
    2 Solubility Practically insoluble in water and in ethanol (95%).
    3 Identification - A B It gives the reaction of magnesium salts. It gives the reaction of silicates.
    4 Alkalinity Not more than 1.0 ml of 0.1M HCl is required.
    5 Arsenic Not more than 4 ppm
    6 Heavy Metals Not more than 40 ppm
    7 Chloride Not more than 500 ppm
    8 Sulphate Not more than 0.5 %
    9 Water soluble Salt Not more than 30 mg
    10 Acid Absorption Cap. Not less than 100 ml 0.1M HCl acid per gm
    11 Loss on Ignition Between 17 % to 34 %
    12 Assay as MgO Assay as SiO2 Not less than 29 % (Ignited basis) Not less than 65 % (Ignited basis)
    Molecular Formula Mg2Si3O8,xH2O
    Molecular Weight 260.86 gm/mol
    Storage Condition Preserve in tight container

    Application

    Used as Antacid in Antacid Formulations. Also useful Antioxidant, Decolorizing Agent and industrial odor absorbent.

    Sr. No. Test Parameters Specification / Limits
    1 Description Fine, white, odourless, tasteless powder, free from grittiness.
    2 Solubility Insoluble in water and alcohol is readily decomposed by mineral acids.
    3 Identification - A B It gives the reaction of magnesium. It gives the reaction of silicates.
    4 Water Between 17.0 % to 34.0 %
    5 Soluble salts Residue weight Not more than 38.0 mg (1.5 %)
    6 Chloride Not more than 0.055 %
    7 Sulphate Not more than 0.5 %
    8 Free Alkali Not more than 1.0 ml of 0.1 M HCl is required.
    9 Arsenic Not more than 8 ppm
    10 Heavy Metals Not more than 0.003 %
    11 Acid Consuming capacity Between 140 ml to 160 ml of 0.1N HCl is required
    12 Assay as MgO Assay as SiO2 Not less than 20.0 % of MgO Not less than 45.0 % of SiO2
    13 Ratio of SiO2 to MgO Between 2.10 to 2.37
    Molecular Formula Mg2Si3O8,xH2O

    Application

    Used as Antacid in Antacid Formulations. Also useful Antioxidant, Decolorizing Agent and industrial odor absorbent.

    Sr. No. Test Parameters Specification / Limits
    1 Description A fine white powder.
    2 Solubility Practically insoluble in water and in alcohol.
    3 Identification: (A) (B) It gives the reaction of silicates. It gives the reaction of magnesium.
    4 Alkalinity (solution-S) Not more than 1.0 ml of 0.1M HCl is required.
    5 Water soluble Salts Not more than 30 mg.
    6 Chloride Not more than 500 ppm
    7 Sulphate Not more than 0.5 %
    8 Arsenic Not more than 4 ppm
    9 Heavy Metal Not more than 40 ppm
    10 Loss on Ignition Between 17 % to 34 % ignited at 900°
    11 Acid Absorbing Capacity Not less than 100 ml of 0.1M HCl acid per gm
    12 Assay as MgO Assay as SiO2 Not less than 29 % of MgO (Ignited basis) Not less than 65 % of SiO2 (Ignited basis)