1 | Description | Almost, white, amorphus powder. | Fine, white or almost white, amorphus powder |
2 | Solubility | Passes | Soluble in dilute acids with at most slight effervescence.Practically insoluble in water.; insoluble in alcohol. |
3 | Identification (Magnesium) | Complies | A white crystalline precipitate which is insoluble in 6 N ammonium hydroxide should form. |
4 | Identification A (Bulk density) | 0.13 g/mL | 0.15 g/mL max. |
5 | Appearance of solution | Passes | Solution should not more intensely coloured than reference solution B2 |
6 | Assay (Ignited substance) | 98.3% | 98.0% - 100.5% |
7 | Soluble substances/ Soluble salts | 0.4% | 2.0% max. |
8 | Substances insoluble in acetic acid | 0.04% | 0.1% max |
9 | Acid-Insoluble substance | 0.03% | NMT 0.1% |
10 | Free alkali and soluble salts: Free alkali | Passes | NMT 2.0 mL of the acid should consume |
11 | Chloride (Cl) | Less than 0.15% | 0.15% max. |
12 | Sulfates | Less than 1.0% | 1.0% max. |
13 | Arsenic | Less than 4 ppm | 4 ppm max. |
14 | calcium | 0.2% | NMT 1.1% |
15 | Iron | Less than 0.05% | NMT 0.05% |
16 | Loss on ignition | 7.3% | NMT 8.0% |