LIGHT MAGNESIUM CARBONATE IP
| CAS No. | : | 546-93-0 |
| Molecular Formula | : | MgCO3 |
| Category | : | Antacid; Osmotic laxative |
| Storage Condition | : | Store protected from moisture |
| Source | : | IP-2010 Vol-2, Page No.1620 |
LIGHT MAGNESIUM CARBONATE BP
CAS No.
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:
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546-93-0
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Molecular Formula
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:
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MgCO3
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Molecular Weight
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:
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84.31 gm/mol
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Source
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:
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BP-2013
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Application:
Magnesite and dolomite minerals are used to produce magnesium metal and basic refractory bricks. Magnesium Carbonate is also used in flooring, fire proofing, fire extinguishing compositions, cosmetics, dusting powder and toothpaste. Other applications are as filler material, smoke suppressant in plastics, a reinforcing agent in neoprene rubber, a drying agent and colour retention in floods. In addition, high purity magnesium carbonate is used as antacid and as an additive in table salt to keep it free flowing.
| Sr. No. | Test Parameters | Specification / Limits |
|---|---|---|
| 1 | Description | A white or almost white powder. |
| 2 | Solubility | Practically insoluble in water, It dissolves in dilute acids with effervescence. |
| 3 | Identification - A B C | Apparent volume Not less than 100 ml/15gm It gives the reaction of Carbonates. It gives the reaction of Magnesium. |
| 4 | Appearance of solution | Solution S is not more intensely colored than Ref.sol B4. |
| 5 | Soluble Substances | Not more than 10 mg. |
| 6 | Substance Insoluble in Acetic Acid | Not more than 2.5 mg |
| 7 | Chlorides | Not more than 700 ppm |
| 8 | Sulphates | Not more than 0.3 % |
| 9 | Arsenic | Not more than 2 ppm |
| 10 | Calcium | Not more than 0.75 % |
| 11 | Iron | Not more than 400 ppm |
| 12 | Heavy Metals | Not more than 20 ppm |
| 13 | Assay as MgO | Between 40.0 % to 45.0 % of MgO |