CASR |
: | 7447-40-7 |
Molecular Formula |
: | KCl |
Molecular Weight |
: | 74.56 |
| Specifications | |
|---|---|
| Appearance: | A white or almost white, crystalline powder or colourless crystals |
| Solubility: | Freely soluble in water, practically insoluble in anhydrous ethanol. |
| Identification A (Chloride a): | A white curdled precipitate which dissolves easily in ammonia should form |
| Identification A (Chloride b): | The paper should turn violet-red. |
| Identification B (Potassium a): | A white crystalline precipitate should form. |
| Identification B (Potassium b): | A yellow or orange-yellow precipitate should form immediately. |
| Appearance of solution: | Clear and colorless solution |
| Acidity & alkalinity: | Not more than 0.5ml of 0.01M hydrochloric acid or of 0.01M sodium hydroxide should require to change the color of indicator. |
| Bromides: | NMT 0.1% |
| Iodides (I): | The substance should not show blue color. |
| Sulfates: | NMT 300ppm |
| Barium(Ba): | Any opalescence in the solution should not be more intense than reference solution |
| Iron (Fe): | NMT 20ppm |
| Magnesium and alkaline earth metals: | NMT 200ppm as Ca |
| Loss on drying,105°C: | NMT 1.0% |
| Assay (on dried basis): | 99.0% to 101.0% |
