1 | Appearance/Description | White powder that readily absorbs moisture. | White powder that readily absorbs moisture. |
2 | Solubility | Complies | Freely soluble in water; insoluble in alcohol |
3 | Identification (By chemical test) | Complies | Solution should slightly alkaline. |
4 | Identification (By Loss on drying) | 0.3% | NMT 1.0% |
5 | Identification (Sodium) | Complies | A dense precipitate should form. |
6 | Identification (Phosphate 1) | Complies | With silver nitrate solution neutral solution should yield yellow precipitate that soluble in 2N nitric acid and 6 N ammonium hydroxide. |
7 | Identification (Phosphate 2) | Complies | With ammonium molybdate solution, acidified solutions should yield a yellow precipitate that should soluble in 6N ammonium hydroxide. |
8 | Identification (Phosphate 3) | Complies | A yellow colour should develop |
9 | Assay (on dry basis) | 99.8% | 98.0% - 100.5% |
10 | Assay (Dried substance) | 99.8% | 98.0% - 101.0% |
11 | Monosodium Phosphate | Less than 2.5% | NMT 2.5% |
12 | Insoluble Substances | 0.004% | NMT 0.4% |
13 | Appearance of solution | Complies | Solution should be clear and colourless. |
14 | Chlorides | Less than 200 ppm | NMT 200 ppm |
15 | Sulphate (SO4) | Less than 500 ppm | NMT 500 ppm |
16 | Reducing substances | Complies | The colour of the permanganate should not be completely discharge. |
17 | Iron(Fe) | Less than 20 ppm | NMT 20 ppm |
18 | Loss on drying at 130°C | 0.3% | NMT 1.0% |
19 | Total aerobic microbial count | Less than 100 CFU/gm | NMT 100 CFU/gm |
20 | Total combined yeast and molds count | Less than 10 CFU/gm | NMT 10 CFU/gm |
21 | E.coli | Absent/gm | Should be absent /gm |
22 | Salmonella | Absent/10 gm | Should be absent /10 gm |
23 | Pseud. aeruginosa | Absent/gm | Should be absent /gm |
24 | Staphylococcus aureus | Absent/gm | Should be absent /gm |
25 | Bile-tolerant gram negative bacteria | Absent/gm | Should be absent /gm |
26 | Bacterial endotoxins | Less than 2.5 EU/gm | NMT 2.5 EU/gm |