CASR |
: | 7447-40-7 |
Molecular Formula |
: | KCl |
Molecular Weight |
: | 74.56 |
| Specifications | |
|---|---|
| Description: | Colorless crystals or a white, crystalline powder. |
| Solubility: | Freely soluble in water; practically insoluble in ethanol and in ether. |
| Identification (Potassium A): | A yellow or orange yellow precipitate should produce immediately |
| Identification (Potassium B): | A white, crystalline precipitate should produce |
| Identification (Potassium C): | A yellow crystalline precipitate should produce which on ignition leaves a reside of potassium chloride and platinum |
| Identification (Chloride A): | A curdy white precipitate which should insoluble in nitric acid but soluble in ammonia solution should form |
| Identification (Chloride B): | A filter-paper moistened with diphenyl carbazide solution should turn violet red. |
| Appearance of solution: | Clear and colorless solution. |
| Acidity & alkalinity: | NMT 0.5ml of 0.01M hydrochloric acid or of 0.01M sodium hydroxide for neutralization to bromothymol blue solution. |
| Arsenic (As): | NMT 1ppm |
| Barium(Ba): | Should not be more opalescent than reference solution. |
| Heavy metals: | NMT 10ppm |
| Calcium(Ca)&Magnesium(Mg): | The solution remains clear. |
| Iron (Fe): | NMT 20ppm |
| Bromide (Br): | NMT 0.1% |
| Iodide(I): | The substance shows no blue colour after 5 minutes. |
| Sulphate (SO4): | NMT 300ppm |
| Loss on drying,105°C: | NMT 1.0% |
| Assay (on dried basis): | 99.00% - 100.50% |
