| Color | White | 
| Form | Crystalline powder | 
| Assay (dry basis) | (IMP+GMP): 97.0-102.0% | 
| pH Value | 7.0-8.5 (5% solution) | 
| Appearance of Solution | Clear and colorless | 
| Transmissivity | ≥ 95.0% | 
| Loss on Drying | ≤ 25.0% | 
| Heavy Metals | ≤ 10 ppm (as Pb) | 
| Arsenic (As) | ≤ 1 ppm | 
| Lead (Pb) | ≤ 1 ppm | 
| Ammonium (NH4) | Color of litmus paper unchanged | 
| Aerobic Plate Count | < 1000 cuf/g | 
| Yeast and Moulds | ≤ 100 cfu/g | 
| Salmonella | Negative | 
| Escherichia. Coli | Negative | 
| Coliform | Negative | 
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