1 | Appearance/Description | White crystalline powder. | Colorless, cubic crystals or white crystals or crystalline powder. |
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 | Identification(Sodium) | Complies | Dense white precipitate should form. |
4 | Identification (Chloride) | Complies | A white curdled precipitate should form which is insoluble in nitric acid but soluble in slight excess of 10N ammonia hydroxide |
5 | Appearance of Solution/ Clarity of solution | Passes | Clear and colorless solution |
6 | Assay (Dried basis) | 99.8% | 99.0% -100.5% of NaCl |
7 | Arsenic (As) | Less than 0.4 ppm | NMT 0.4 ppm |
8 | Barium(Ba) | Passes | Any opalescence in the test solution should not more intense than that in the reference solution |
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 or no particle shows any trace of blue color within 5 min. |
11 | Iron (Fe) | Less than 2ppm | NMT 2ppm |
12 | Bromide (Br) | Less than 100ppm | NMT 100ppm |
13 | Phosphate (PO4) | Less than 25ppm | NMT 25ppm |
14 | Magnesium and alkaline earth metals | Less than 100 ppm | NMT 100 ppm, calculated as Ca |
15 | Nitrite(NO2) | 0.003 | Absorbance should not be more than 0.01 at 354 nm |
16 | Sulphate (SO4) | Less than 0.002% | NMT 0.002% |
17 | Acidity or Alkalinity | 0.05mL sodium hydroxide (0.02 mol/L) | NMT 0.10mL sodium hydroxide (0.02 mol/L) should require to change the color of solution from yellow to blue or NMT 0.20 mL of hydrochloric acid (0.02 mol/L) should require to change the color of solution from blue or green to yellow |
18 | Loss on drying,105°C | 0.2% | NMT 0.5% |
19 | Limit of potassium | Less than 0.02% | NMT 0.02% |
20 | calcium | Passes | No opalescence should produce within 5 min. |
21 | Magnesium (Mg) | Less than 0.001% | NMT 0.001% |
22 | Aluminum | Less than 0.2 ppm | NMT 0.2 ppm |
23 | Total aerobic microbial count | 05 CFU/gm | NMT 100 CFU/gm |
24 | Total Yeast and mold count | Less than 10 CFU/gm | NMT 10 CFU/gm |
25 | Escherichia coli | Absent/gm | should be absent/gm |
26 | Pseud. aeruginosa | Absent/gm | should be absent/gm |
27 | Staphylococcus aureus | Absent/gm | should be absent/gm |
28 | Bile-tolerant gram negative bacteria | Absent/gm | should be absent/gm |
29 | Salmonella | Absent/10 gm | should be absent/10 gm |
30 | Bacterial endotoxin test | Less than 5.0 IU/gm | NMT 5.0 IU/gm |