1 | Appearance | White crystalline powder. | White crystalline powder. |
2 | Solubility | Complies | Soluble in water, practically insoluble in ethanol (96%) |
3 | Identification (By IR) | Complies | IR spectra of the sample should be concomitant with IR spectra of standard |
4 | Identification (By chemical test) | Complies | No precipitate should produce. |
5 | Appearance of Solution | Complies | Solution should be clear and colorless. |
6 | pH | 4.4 | 4.0-5.5 |
7 | Impurity A (Nitrilotriacetic acid) | 0.002% | 0.1% max |
8 | Calcium (Ca) | Complies | No precipitate should form. |
9 | Iron (Fe) | Less than 80ppm | 80ppm max |
10 | Assay (on dried basis) | 99.8% | 99.0% - 101.0% |
11 | Loss on drying at 150° for 6 Hr | 9.6% | 8.7%-11.4% |
12 | Particle size | 98.7 Passes through 100 mesh | NLT 95% Passes through 100 mesh |