Potassium Acetate BP
C2H3O2K -- 98.14 -- 127-08-2
Potassium acetate contains not less than 99.0 per cent and not more than the equivalent of 101.0 per cent of C2H3KO2, calculated with reference to the dried substance.
A white, crystalline powder or colourless crystals, deliquescent, very soluble in water, freely soluble in alcohol.
A. It gives reaction of acetates.
B. It gives reaction of potassium.
Solution S: Dissolve 10.0 g in distilled water and dilute to 100 ml with the same solvent.
Appearance of solution: Solution S is clear and colourless.
pH: Dissolve 1.0 g in carbon dioxide-free water and dilute to 20 ml with the same solvent. The pH of the solution is 7.5 to 9.0.
Reducing substances: Dilute 10 ml of solution S to 100 ml with water. Add 5 ml of dilute sulphuric acid and 0.5 ml of a 0.32 g/l solution of potassium permanganate. Mix and boil gently for 5 min. The solution remains pink.
Chlorides: Dilute 2.5 ml of solution S to 15 ml with water. The solution complies with the limit test for chlorides (200 ppm).
Sulphates: Dilute 7.5 ml of solution S to 15 ml with distilled water. The solution complies with the limit test for sulphates (200 ppm).
Aluminium: If intended for use in the manufacture of peritoneal dialysis solutions, haemofiltration solutions or hem dialysis solutions, it complies with the test for aluminium. Dissolve 2.0 g in 50 ml of water and add 5 ml of acetate buffer solution pH 6.0. The solution complies with the limit test for aluminium (1 ppm). Use as a reference solution a mixture of 1 ml of aluminium standard solution (2 ppm Al), 5 ml of acetate buffer solution pH 6.0 R and 49 ml of water. To prepare the blank use a mixture of 5 ml of acetate buffer solution pH 6.0 R and 50 ml of water.
Iron: Dilute 5 ml of solution S to 10 ml with water. The solution complies with the limit test for iron (20 ppm).
Heavy metals: Dissolve 5.0 g in water and dilute to 20 ml with the same solvent. 12 ml of the solution complies with limit test A for heavy metals (4 ppm). Prepare the standard using lead standard solution (1 ppm Pb).
Sodium: Not more than 0.5 per cent of Na, determined by atomic emission
Loss on drying: Not more than 3.0 per cent, determined on 1.000 g by drying in an oven at 100 °C to 105C.
Potassium Acetate USP
Acetic acid, potassium salt. 127-08-2.
Potassium Acetate contains not less than 99.0 percent and not more than 100.5 percent of C2H3KO2, calculated on the dried basis.
Identification: A solution (1 in 10) responds to the tests for Potassium and for Acetate.
pH: between 7.5 and 8.5, in a solution (1 in 20).
Loss on drying: Dry it at 150 for 2 hours: it loses not more than 1.0% of its weight.
Heavy metals: the limit is 0.002%.
Limit of sodium: To pass the test not more than 0.03% of sodium is found.
otassium Acetate Analytical Reagent
Formula Wt. 98.14
CAS Number 127-08-2
Assay: 99.0% CH3COOK
pH of a 5% solution: 6.5-9.0 at 25C
Insoluble matter: 0.005%
Chloride (Cl): 0.003%
Phosphate (PO4): 0.001%
Sulfate (SO4): 0.002%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
Calcium (Ca): 0.005%
Magnesium (Mg): 0.002%
Sodium (Na): 0.03%
We offer Chemically Pure, BP USP Analytical Reagent and Food grade of Potassium Acetate.
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
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