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

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Potassium Metabisulfite or Potassium Metabisulphite Specifications of Commercial Pure & BP Ph Eur USP FCC Food Grade Manufacturers & Exporters Please visit Potassium Metabisulfite or Potassium Metabisulphite 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 Metabisulfite or Potassium Metabisulphite CAS Number 16731-55-8 Potassium Metabisulfite USP NF Grade Specifications: K2S2O5 --- 222.32 Disulfurous acid, dipotassium salt; Dipotassium pyrosulfite CAS 16731-55-8 DEFINITION Potassium Metabisulfite contains an amount of K2S2O5 equivalent to NLT 51.8% and NMT 57.6% of SO2. IDENTIFICATION A. Identification Tests-General, Potassium and Sulfite: ;A solution (1 in 20) meets the requirements. Iron: Test preparation: Dissolve 1.00 g in 14 mL of dilute hydrochloric acid (2 in 7) and evaporate on a steam bath to dryness. Dissolve the residue in 7 mL of dilute hydrochloric acid (2 in 7), and again evaporate to dryness. Dissolve the resulting residue in a mixture of 2 mL of hydrochloric acid and 20 mL of water. Add 3 drops of bromine, and boil to expel the bromine. Cool, and dilute with water to 47 mL. Acceptance criteria: NMT 10 ppm Packaging and Storage: Preserve in well-fitted, tight containers, and avoid exposure to excessive heat. Specifications of Potassium Metabisulphite BP Ph Eur Grade K2S2O5 - 222.3 - CAS 16731-55-8 DEFINITION Potassium metabisulphite (potassium disulphite). Content: 95.0 per cent to 101.0 per cent. CHARACTERS Appearance: White or almost white powder, or colourless crystals. Solubility: Freely soluble in water, slightly soluble in ethanol (96 per cent). IDENTIFICATION A. pH (see Tests). B. To 5 ml of solution S (see Tests), add 0.5 ml of 0.05 M iodine. The mixture is colourless and gives reaction of sulphates. C. Solution S gives reaction of potassium. TESTS Solution S: Dissolve 5.0 g in carbon dioxide-free water R and dilute to 100 ml with the same solvent. Appearance of solution: Solution S is clear and colourless. pH: 3.0 to 4.5 for solution S. Thiosulphates: To 2.00 g add 25 ml of a 42.5 g/l solution of sodium hydroxide and 75 ml of water. Shake until dissolved and add 10 ml of formaldehyde and 10 ml of acetic acid. After 5 min, titrate with 0.05 M iodine using 1 ml of starch solution. Carry out a blank titration. The difference between the volumes consumed in the 2 titrations is maximum 0.15 ml. Iron: Maximum 10 ppm. Selenium: Maximum 10 ppm. Zinc: Maximum 25 ppm. Heavy metals: Maximum 10 ppm. Specifications of Potassium Metabisulfite FCC Food Grade Potassium Pyrosulfite K2S2O5 Formula weight 222.31 INS: 224 CAS 16731-55-8 DESCRIPTION Potassium Metabisulfite occurs as white or colorless, free flowing crystals, crystalline powder, or granules. It gradually oxidizes in air to the sulfate. It is soluble in water, but it is insoluble in alcohol. Its solutions are acid to litmus. REQUIREMENTS Identification: A 1:10 aqueous solution gives positive tests for Potassium and for Sulfite. Assay: Not less than 90.0% of K2S2O5. Lead: Not more than 2 mg/kg. Iron: Not more than 10 mg/kg. Selenium: Not more than 5 mg/kg. SDS MSDS of Potassium Metabisulfite or Potassium Metabisulphite BP Ph Eur EP JP USP NF IP ACS Analytical Reagent FCC Food grade Manufacturers

Crystal Clear Products and the group companies are manufacturing chemicals since several decades. We have automatic vacuum operated titanium evaporators and SS316 equipments to produce top grade of chemical products. We have toll manufacturers and representatives in China, UAE, Europe, Canada & USA and agents & customers in all countries like USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Uganda, Turkey, Mexico, Brazil, Chile, Argentina, Bangkok Thailand, Kaula Lumpur Malaysia, Dubai UAE etc. & sales representative in Chicago, Houston New York & Los Angeles, USA. Associated units are FDA-GMP certified, Halal and/or Kosher certified, REACH registered, ISO-9001, ISO-22000 HACCP certified, Crisil Rated.

Contact Potassium Metabisulfite or Potassium Metabisulphite IP BP Ph Eur EP JP USP NF ACS Analytical Reagent FCC Food Grade manufacturers exporters at:

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

Manufacturers, Suppliers of IP BP Ph Eur EP JP USP NF FCC Food, ACS Reagent GMP Grades of Chemicals like Potassium Metabisulfite or Potassium Metabisulphite