CASR |
: | 7647-14-5 |
Molecular Formula |
: | NaCl |
Molecular Weight |
: | 58.44 |
| Specifications | |
|---|---|
| Description: | Colorless, cubic crystals or white crystals or crystalline powder. Has a saline taste or almost white pearls |
| Solubility: | Freely soluble in water; and slightly more soluble in boiling water; soluble in glycerin; slightly soluble in alcohol. Practically insoluble in anhydrous ethanol |
| Assay: | 99.5% - 100.5% |
| Identification(Sodium): | Dense white precipitate should form |
| Identification (Chloride): | The precipitate dissolves easily with the possible exception of a few large particles, which dissolve more slowly |
| Appearance of solution: | Clear and colorless solution |
| Acidity or Alkalinity: | NMT 0.5ml of 0.01N hydrochloric acid or 0.01N sodium hydroxide should require to change the color of this solution |
| Bromide (Br): | NMT 0.005% |
| Ferrocyanide[Fe(CN6)]: | No blue color should develop in 10 min |
| Iodide(I): | No blue color should observe in the mixture |
| Nitrite(NO2): | Absorbance should not be more than 0.01 at 354 nm |
| Phosphate (PO4): | NMT 0.0025% |
| Sulfate (SO4): | NMT 0.02% |
| Heavy metals (as Pb): | NMT 0.0003% |
| Aluminium (Al): | NMT 0.00002% |
| Arsenic (As): | NMT 0.0001% |
| Barium(Ba): | Any opalescence in the test solution should not more intense than that in the reference solution |
| Calcium (Ca): | NMT 0.002% |
| Iron (Fe): | NMT 0.0002% |
| Potassium (K): | NMT 0.01% |
| Magnesium and alkaline earth metals: | NMT 0.01% |
| Loss on drying at 105°C: | NMT 0.5% |
| Total aerobic microbial count: | NMT 100 CFU/gm |
| Total Yeast and mold count: | NMT 100 CFU/gm |
| Bacterial endotoxins: | NMT 2.5IU/gm |
