Items | Standard |
Appearance | White powder |
Identification | Test for magnesium |
Test for alkali | |
Solubility | Practically insoluble in water.Insoluble in ethanol |
Aspect of solution | Complies |
Soluble substances | ≤2.0% |
Insoluble substances (in acid) | ≤0.10% |
Free alkali | ≤2.0mL |
Chlorides | ≤0.1% |
Ca(EP) | ≤1.5% |
Ca(USP) | ≤1.1% |
Calcium oxide | ≤1.5% |
Sulfates(SO4) | ≤1.0% |
Cadmium | ≤0.5ppm |
Arsenic | ≤1ppm |
Hydrargyrum | ≤0.5ppm |
Hydrargyrum | ≤0.1ppm |
Lead | ≤0.5ppm |
Iron(EP) | ≤0.07% |
Iron(USP) | ≤0.05% |
Loss on ignition(USP\FCC) | ≤10.0% |
Loss on ignition(EP) | ≤8.0% |
Loss on ignition(E530) | ≤5.0% |
Bulk density | 250-650g/l |
Content ( MgO) on ignited basis | 98.0- 100.5% |
Particle size (325 mesh) | ≤25 .0% |