Complaint
Item | BP2013 | USP35 | EP8.0 |
Appearance | White or almost white, fine powder. | ||
Solubility | Sparingly soluble in water, practically insoluble in ethanol (96 per cent) | ||
Identification | A. It gives the reaction of citrates B. It gives the reaction of magnesium | ||
Content(dried substance) | 15.0%-16.5% | 14.5%-16.4% | 15.0%-16.5% |
PH Value | 6.0-8.5 | 5.0-9.0 | 6.0-8.5 |
Oxalats(C2O4) | NMT 280 ppm. | / | NMT 280 ppm. |
chlorid | / | NMT 0.05% | / |
Sulfates | NMT 0.2% | NMT 0.2% | NMT 0.2% |
Arsnic | / | NMT3ppm | / |
calcium (CA) | NMT 0.2% | NMT1% | NMT 0.2% |
Iron(FE) | NMT 100 ppm. | NMT 200 ppm. | NMT 100 ppm. |
Heavy metals | NMT 10ppm | NMT 50ppm | NMT 10ppm |
Loss on drying | NMT 3.5% ( 180 °C for 5h ) | NMT2% (135 °C for 16 h) | NMT 3.5% ( 180 °C for 5h) |
Storage | In airtight container | ||
