1 | Appearance/Description | White crystalline powder white pearls. | White crystalline powder or colourless crystals or white or almost white pearls |
2 | Solubility | Complies | Freely soluble in water, and slightly more soluble in boiling water; practically insoluble in anhydrous ethanol |
3 | Identification (Chloride A) | Complies | A curdy white precipitate, insoluble in nitric acid but soluble in dilute ammonia should form |
4 | Identification (Chloride B) | Complies | A filter paper moistened with diphenylcarbazide solution should turn violet-red |
5 | Identification (Sodium A) | Complies | A dense white precipitate should form |
6 | Identification (Sodium B) | Complies | No precipitate should form |
7 | Appearance of solution | Compleis | Clear and colourless solution |
8 | Acidity & alkalinity | Complies | Not more than 0.5ml of 0.01M hydrochloric acid or 0.01M sodium hydroxide should require to change the colour of the indicator. |
9 | Bromide (Br) | Less than 100ppm | 100ppm max |
10 | Ferrocyanide[Fe(CN6)] | Complies | No blue colour should produce within 10 minutes. |
11 | Iodide(I) | Complies | The mixture shows no blue colour within 5 min. |
12 | Nitrite (NO2) | 0.007 | The absorbance should not be greater than 0.01 at 354 nm |
13 | Phosphate (PO4) | Less than 25ppm | NMT 25ppm |
14 | Sulphate (SO4) | Less than 200ppm | NMT 200ppm |
15 | Arsenic (As) | Less than 1ppm | NMT 1ppm |
16 | Barium(Ba) | Complies | Any opalescence in the solution should not more intense than that of reference solution after 2 hrs |
17 | Iron (Fe) | Less than 2ppm | NMT 2ppm |
18 | Magnesium and alkaline earth metals | Less than 100ppm | NMT 100ppm (Calculated as Ca) |
19 | Calcium(Ca)&Magnesium(Mg) | Less than 50 ppm | NMT 50ppm (Calculated as Ca) |
20 | Loss on drying (105°C, 3 Hrs) | 0.4% | NMT 0.5% |
21 | Assay (Dried substance) | 99.9% | 99.0% - 100.50% |
22 | Heavy metal | Less than 5ppm | NMT 5ppm |
23 | Potassium (K) | 30ppm | NMT 500ppm |
24 | Total aerobic microbial count | Less than 100 CFU/gm | NMT 100 CFU/gm |
25 | Total Yeast and mold count | Less than 10 CFU/gm | NMT 10 CFU/gm |
26 | Escherichia coli | Absent/gm | should be Absent /gm |
27 | Pseud. aeruginosa | Absent/gm | should be Absent /gm |
28 | Staphylococcus aureus | Absent/gm | should be Absent /gm |
29 | Bile-tolerant gram negative bacteria | Absent/gm | should be Absent /gm |
30 | Clostridia | Absent/gm | should be Absent /gm |
31 | Salmonella | Absent/10 gm | should be Absent / 10gm |
32 | Bacterial endotoxin test | Less than 5.0 IU/gm | NMT 5.0 IU/gm |