Potassium chloride BP 25KG Go Back


: 7447-40-7

Molecular Formula

: KCl

Molecular Weight

: 74.56
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: 0.1% max
Iodides (I): The substance should not show blue color.
Sulfates: 300ppm max
Barium(Ba): Any opalescence in the solution should not be more intense than reference solution
Iron (Fe): 20ppm max
Magnesium and alkaline earth metals: 200ppm max as Ca
Loss on drying,105°C: 1.0% max.
Assay (on dried basis): 99.0% to 101.0%
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