CASR |
: | 7647-14-5 |
Molecular Formula |
: | NaCl |
Molecular Weight |
: | 58.44 |
| Specifications | |
|---|---|
| Appearance: | White or almost white, crystalline powder or colourless crystals or white or almost white pearls. |
| Solubility: | Freely soluble in water, practically insoluble in anhydrous ethanol. |
| Identification A (Chloride): | A white curdled precipitate should form which should dissolve in ammonia |
| Identification B (Sodium): | A dense white precipitate should form |
| Appearance of Solution: | Clear and colorless solution |
| Acidity & alkalinity: | Not more than 0.5ml of 0.01M hydrochloric acid or 0.01M sodium hydroxide should require to change the colour of the indicator. |
| Bromide (Br): | 100ppm max |
| Ferrocyanide[Fe(CN6)]: | No blue colour should produce within 10 minutes. |
| Iodide(I): | The mixture shows no blue colour. |
| Nitrite (NO2): | The absorbance should not be greater than 0.01 at 354 nm |
| Phosphate (PO4): | 25ppm max |
| Sulphate (SO4): | 200ppm max |
| Arsenic (As): | 1ppm max |
| Barium(Ba): | Any opalescence in the solution should not more intense than that of reference solution . |
| Iron (Fe): | 2ppm max |
| Magnesium and alkaline earth metals: | 100ppm max |
| Loss on drying,105°C: | 0.5% max |
| Assay (Dried substance): | 99.0% - 100.5% |
