CASR |
: | 7647-14-5 |
Molecular Formula |
: | NaCl |
Molecular Weight |
: | 58.44 |
| Specifications | |
|---|---|
| Appearance/Description: | Colorless, cubic crystals or white crystals or crystalline powder. |
| Solubility: | Freely soluble in water; and slightly more soluble in boiling water; soluble in glycerin; slightly soluble in alcohol. Practically insoluble in anhydrous ethanol |
| Identification(Sodium): | Dense white precipitate should form. |
| Identification (Chloride): | A white curdled precipitate should form which is insoluble in nitric acid but soluble in slight excess of 10N ammonia hydroxide |
| Appearance of Solution/ Clarity of solution: | Clear and colorless solution |
| Assay (Dried basis): | 99.0% -100.5% of NaCl |
| Arsenic (As): | NMT 0.4 ppm |
| Barium(Ba): | Any opalescence in the test solution should not more intense than that in the reference solution |
| Ferrocyanide[Fe(CN6)]: | No blue color should develop in 10 min. |
| Iodide(I): | No blue color should observe in the mixture or no particle shows any trace of blue color within 5 min. |
| Iron (Fe): | NMT 2ppm |
| Bromide (Br): | NMT 100ppm |
| Phosphate (PO4): | NMT 25ppm |
| Magnesium and alkaline earth metals: | NMT 100 ppm, calculated as Ca |
| Nitrite(NO2): | Absorbance should not be more than 0.01 at 354 nm |
| Sulphate (SO4): | NMT 0.002% |
| Acidity or Alkalinity: | 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 |
| Loss on drying,105°C: | NMT 0.5% |
| Limit of potassium: | NMT 0.02% |
| calcium: | No opalescence should produce within 5 min. |
| Magnesium (Mg): | NMT 0.001% |
| Aluminum: | NMT 0.2 ppm |
| Total aerobic microbial count: | NMT 100 CFU/gm |
| Total Yeast and mold count: | NMT 10 CFU/gm |
| Escherichia coli: | should be absent/gm |
| Pseud. aeruginosa: | should be absent/gm |
| Staphylococcus aureus: | should be absent/gm |
| Bile-tolerant gram negative bacteria: | should be absent/gm |
| Salmonella: | should be absent/10 gm |
| Bacterial endotoxin test: | NMT 5.0 IU/gm |
