Potassium chloride IP 25KG Go Back


: 7447-40-7

Molecular Formula

: KCl

Molecular Weight

: 74.56
Description: Colorless crystals or a white, crystalline powder;odorless.
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: Not more than 0.5ml of 0.01M hydrochloric acid or of 0.01M sodium hydroxide for neutralization to bromothymol blue solution.
Arsenic (As): 1ppm max
Barium(Ba): Passes test
Heavy metals: 10ppm max
Calcium(Ca)&Magnesium(Mg): The solution remains clear.
Iron (Fe): 20ppm max
Bromide (Br): 0.1% max
Iodide(I): The substance shows no blue colour after 5 minutes.
Sulphate (SO4): 300ppm max
Loss on drying,105°C: Not more than 1.0%
Assay (on dried basis): 99.00% - 100.50%
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