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Potassium Iodide Specifications of Commercial Pure & BP Ph Eur USP IP Analytical Reagent FCC Food Grade Manufacturers & Exporters Please visit Potassium Iodide USP NF ACS BP Ph Eur EP JP IP Analytical reagent FCC Food grade Manufacturers our associates world class FDA-GMP approved, ISO-9001 Certified facility Anmol Chemicals Potassium Iodide CAS Number 7681-11-0 Potassium Iodide USP Grade Specifications: KI --- 166.00 Potassium iodide CAS 7681-11-0 DEFINITION Potassium Iodide contains NLT 99.0% and NMT 101.5% of KI, calculated on the dried basis. IDENTIFICATION A. Identification Tests-General, Potassium: Meets the requirements B. Identification Tests-General, Iodide: Meets the requirements ASSAY Procedure Sample solution: Dissolve 500 mg of Potassium Iodide in 10 mL of water. Analysis: Add 35 mL of hydrochloric acid to the Sample solution, and titrate with 0.05 M potassium iodate until the dark brown solution that is produced becomes pale brown. Add 2–3 drops of amaranth and continue the titration slowly until the red color just changes to yellow. Each mL of 0.05 M potassium iodate is equivalent to 16.60 mg of KI. Acceptance criteria: 99.0% to 101.5% on the dried basis. Iodate: Iodate solution: Dilute 1 mL of potassium iodate solution (1 in 2500) with water to 100 mL. Standard solution: Dissolve 100 mg of Potassium Iodide in ammonia- and carbon dioxide-free water and add 1 mL of Iodate solution to obtain 10 mL of solution. Transfer to a color-comparison tube, add 1 mL of starch and 0.25 mL of 1.0 N sulfuric acid, and mix. Sample solution: Dissolve 1.1 g in sufficient ammonia- and carbon dioxide-free water to obtain 10 mL of solution. Transfer to a color-comparison tube, add 1 mL of starch TS and 0.25 mL of 1.0 N sulfuric acid, and mix. Acceptance criteria: Any color produced in the Sample solution does not exceed that produced in the Standard solution (NMT 4 µg/g). Limit of Nitrate, Nitrite, and Ammonia: Sample solution: Dissolve 1 g in 5 mL of water. Analysis: To the Sample solution contained in a test tube of 40-mL capacity add 5 mL of 1 N sodium hydroxide and 200 mg of aluminum wire. Insert a pledget of purified cotton in the upper portion of the test tube and place a piece of moistened red litmus paper over the mouth of the tube. Heat the test tube and its contents in a steam bath for 15 min. Acceptance criteria: No blue coloration of the paper is discernible. Thiosulfate and Barium: Sample solution: Dissolve 0.5 g in 10 mL of ammonia- and carbon dioxide-free water. Analysis: Add 2 drops of 2 N sulfuric acid. Acceptance criteria: No turbidity develops within 1 min. Alkalinity: Sample solution: Dissolve 1.0 g of Potassium Iodide in 10 mL of water. Analysis: Add 0.1 mL of 0.1 N sulfuric acid and 1 drop of phenolphthalein to the Sample solution. Acceptance criteria: No color is produced. Loss on Drying: Dry a sample at 105C for 4 h: it loses NMT 1.0% of its weight. Packaging and Storage: Preserve in well-closed containers. Specifications of Potassium Iodide BP Ph Eur Grade KI -- 166.0 -- CAS 7681-11-0 Content: 99.0 per cent to 100.5 per cent (dried substance). CHARACTERS Appearance: White or almost white powder or colourless crystals. Solubility: Very soluble in water, freely soluble in glycerol, soluble in ethanol (96 per cent). IDENTIFICATION A. Solution S (see Tests) gives the reactions of iodides (2.3.1). B. Solution S gives the reactions of potassium (2.3.1). TESTS Solution S: Dissolve 10.0 g in carbon dioxide-free water R prepared from distilled water R and dilute to 100 ml with the same solvent. Appearance of solution: Solution S is clear and colourless. Alkalinity: To 12.5 ml of solution S add 0.1 ml of bromothymol blue solution R1. Not more than 0.5 ml of 0.01 M hydrochloric acid is required to change the colour of the indicator. Iodates: To 10 ml of solution S add 0.25 ml of iodide-free starch solution R and 0.2 ml of dilute sulphuric acid R and allow to stand protected from light for 2 min. No blue colour develops. Sulphates: Maximum 150 ppm. Dilute 10 ml of solution S to 15 ml with distilled water R. Thiosulphates: To 10 ml of solution S add 0.1 ml of starch solution R and 0.1 ml of 0.005 M iodine. A blue colour is produced. Iron: Maximum 20 ppm. Dilute 5 ml of solution S to 10 ml with water R. Heavy metals: Maximum 10 ppm. 12 ml of solution S complies with test A. Prepare the reference solution using lead standard solution (1 ppm Pb) R. Loss on drying: Maximum 1.0 per cent, determined on 1.00 g of previously powdered substance by drying in an oven at 105C for 3 h. Specifications of Potassium Iodide IP Grade KI -- Molecular Weight 166.00 Category: Antithyroid; antifungal; expectorant. Description: Colourless crystals or white powder; odourless Solubility: Very soluble in water; freely soluble in glycerin; soluble in ethanol (95%). STANDARDS Potassium Iodide contains not less than 99.0 per cent and not more than 100.5 per cent of KI, calculated with reference to the dried substance. Identification: A 10% w/v solution in carbon dioxide-free water (solution A) gives the reactions of potassium salts and of iodides. Alkalinity: To 10 ml of solution A add 0.2 ml of 0.01M sulphuric acid; no colour is produced on addition of a drop of PhPh solution. . Clarity and colour of solution: Solution A is clear and colourless. Arsenic: Dissolve 5.0 g in 50 ml of 'water and 12 ml of stannated hydrochloric acid AsT. The resulting solution complies with the limit test for arsenic (2 ppm). Heavy metals: Not more than 10 ppm, determined on 2.0 g Iron: Solution A complies with the limit lest for iron (20 ppm). Barium: Dissolve 0.5 g in 10 ml of water and add 1 ml of dilute sulphuric acid; no turbidity develops within one minute. Specifications of Potassium Iodide FCC Food Grade KI Formula weight 166.00 CAS 7681-11-0 DESCRIPTION Potassium Iodide occurs as hexahedral crystals, either transparent and colorless or somewhat opaque and white, or as a white, granular powder. It is stable in dry air but slightly hygroscopic in moist air. One gram is soluble in 0.7 mL of water at 25C, in 0.5 mL of boiling water, in 2 mL of glycerin, and in 22 mL of alcohol. REQUIREMENTS Identification: A. A 1:10 aqueous solution responds to the tests for Potassium and for Iodide. B. The pH of a 1:20 aqueous solution is between 6 and 10. Assay: Not less than 99.0% and not more than 101.5% of KI after drying. Iodate: Not more than 4 mg/kg. Lead: Not more than 4 mg/kg. Loss on Drying: Not more than 1%. Nitrate, Nitrite, and Ammonia: Passes test. Thiosulfate and Barium: Passes test. Specifications of Potassium Iodide Analytical Reagent Grade KI -- Formula Weight 166.00 CAS Number 7681-11-0 REQUIREMENTS Assay: Minimum 99.0% KI pH of a 5% solution: 6.0-9.2 at 25C MAXIMUM ALLOWABLE Insoluble matter: 0.005% Loss on drying at 150C: 0.2% Chloride and bromide (as Cl): 0.01% Iodate (IO3): 3 ppm Nitrogen compounds (as N): 0.001% Phosphate (PO4): 0.001% Sulfate (SO4): 0.005% Barium (Ba): 0.002% Heavy metals (as Pb): 5 ppm Iron (Fe): 3 ppm Calcium (Ca): 0.002% Magnesium (Mg): 0.001% Sodium (Na): 0.005%. SDS MSDS of Potassium Iodide BP Ph Eur EP JP USP NF IP ACS Analytical Reagent FCC Food grade Manufacturers

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Crystal Clear Products
Plot No-C1-1031-9, GIDC Estate, Panoli, Ankleshwar, Gujarat - 393002. India
Telephone Mobile: 91-7506449333; e-mail: info@crystalclearproducts.org

e-mail: info@crystalclearproducts.org

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