1 | Description | White crystals. Has a saline taste. | Colorless, cubic crystals or white crystals or crystalline powder. Has a saline taste or almost white pearls |
2 | Solubility | Passes | Freely soluble in water; and slightly more soluble in boiling water; soluble in glycerin; slightly soluble in alcohol. Practically insoluble in anhydrous ethanol |
3 | Assay | 99.88% | 99.5% - 100.5% |
4 | Identification(Sodium) | Complies | Dense white precipitate should form |
5 | Identification (Chloride) | Complies | The precipitate dissolves easily with the possible exception of a few large particles, which dissolve more slowly |
6 | Appearance of solution | Passes | Clear and colorless solution |
7 | Acidity or Alkalinity | Passes | NMT 0.5ml of 0.01N hydrochloric acid or 0.01N sodium hydroxide should require to change the color of this solution |
8 | Bromide (Br) | Less than 0.005% | NMT 0.005% |
9 | Ferrocyanide[Fe(CN6)] | Passes | No blue color should develop in 10 min |
10 | Iodide(I) | Passes | No blue color should observe in the mixture |
11 | Nitrite(NO2) | 0.001 | Absorbance should not be more than 0.01 at 354 nm |
12 | Phosphate (PO4) | Less than 0.0025% | NMT 0.0025% |
13 | Sulfate (SO4) | Less than 0.02% | NMT 0.02% |
14 | Heavy metals (as Pb) | Not detected | NMT 0.0003% |
15 | Aluminium (Al) | Not detected | NMT 0.00002% |
16 | Arsenic (As) | Not detected | NMT 0.0001% |
17 | Barium(Ba) | Passes | Any opalescence in the test solution should not more intense than that in the reference solution |
18 | Calcium (Ca) | Not detected | NMT 0.002% |
19 | Iron (Fe) | Less than 0.0002% | NMT 0.0002% |
20 | Potassium (K) | 0.0031% | NMT 0.01% |
21 | Magnesium and alkaline earth metals | Less than 0.01% | NMT 0.01% |
22 | Loss on drying at 105°C | 0.31% | NMT 0.5% |
23 | Total aerobic microbial count | Less than 100 CFU/gm | NMT 100 CFU/gm |
24 | Total Yeast and mold count | Less than 100 CFU/gm | NMT 100 CFU/gm |
25 | Bacterial endotoxins | Less than 2.5IU/gm | NMT 2.5IU/gm |