Aakash Manthan Industries S8- Sarifa Mansion, 2nd Flank Road, Chinchbunder, Opp. Kesar Baug, Mumbai 400009. India Tele: 91-22-23770100; Fax: 91-22-23728264; Mobile: 91-9821870100; e-mail: info@mubychem.com

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Sodium Thiosulfate Anhydrous Pentahydrate BP Ph Eur USP, FCC Food, ACS Reagent Grade Manufacturers MSDS of Sodium Thiosulfate Pentahydrate MSDS of Sodium Thiosulfate Anhydrous Sodium Thiosulfate or Thiosulphate Pentahydrate CAS Number 10102-17-7 Sodium Thiosulfate or Thiosulphate  Anhydrous CAS Number 7772-98-7 Specifications of Sodium Thiosulfate Pentahydrate Pure and Photographic Pea Crystals and Sugar Crystals Appearance: Cylindrical Pellets (5 mm to 10 mm for P4) & (2 mm to 5 mm for P8) and White Uniform Crystals (10 mesh) pH of 10% Aqueous Solution: 6.5 to 8 Assay: 99.5% minimum Sulfites & Sulfates: 0.2% max Heavy Metals: Less than 3 ppm Iron: Less than 5 ppm. Specifications of Sodium Thiosulfate Anhydrous Assay as (Na2)S2O3: 98 % Min. 10% solution in water: Clear Description: White powder free from foreign particles. pH of 10 % Solution: 6.5 To 8.5 Sulfites & Sulfates: 0.5% maximum Iron: Less than 10 ppm Heavy Metals: Less than 10 ppm. Sodium Thiosulfate USP Na2S2O3·5H2O 248.19 Contains not less than 99.0 percent and not more than 100.5 percent of Na2S2O3, calculated on the anhydrous basis. Packaging and storage: Preserve in tight containers. Identification: A: To a solution (1 in 10) add a few drops of iodine TS: the color is discharged. B: A solution (1 in 10) responds to the tests for Sodium and for Thiosulfate. Water: Dry about 1.0 g, accurately weighed, in vacuum at 40 o to 45o for 16 hours: it loses between 32.0% and 37.0% of its weight. Calcium: Dissolve 1 g  Sodium Thiosulfate in 20 mL of water, and add a few mL of ammonium oxalate TS: no turbidity is produced. Heavy metals: the limit is 0.002%. Sodium Thiosulphate BP Ph Eur Na2S2O3,5H2O DEFINITION Content: 99.0 per cent to 101.0 per cent of Na2S2O3,5H2O. CHARACTERS Appearance: Transparent, colorless crystals, efflorescent in dry air. Solubility: Very soluble in water, practically insoluble in ethanol 96 per cent. It dissolves in its water of crystallization at about 49°C. IDENTIFICATION A. It decolorizes iodinated potassium iodide solution. B. To 0.5 ml of solution S (see Tests) add 0.5 ml of water R and 2 ml of silver nitrate solution. A white precipitate is formed which rapidly becomes yellowish and then black. C. To 2.5 ml of solution S add 2.5 ml of water and 1 ml of hydrochloric acid. A precipitate of sulphur is formed and gas is evolved which gives a blue colour to starch iodate paper. D. 1 ml of solution S gives reaction of sodium. 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: The freshly prepared solution is clear and colourless. Dissolve 10.0 g in 50 ml of distilled water, add 1 ml of 0.1 M sodium hydroxide and dilute to 100 ml with the same solvent. pH: 6.0 to 8.4 for the freshly prepared solution S. Sulphates and sulphites: Maximum 0.2 per cent. Sulphides: To 10 ml of solution S add 0.05 ml of a freshly prepared 50 g/l solution of sodium nitroprusside. The solution does not become violet. Heavy metals: Maximum 10 ppm. ASSAY Dissolve Sodium Thiosulfate 0.500 g in 20 ml of water and titrate with 0.05 M iodine, using 1 ml of starch solution, added towards the end of the titration, as indicator. 1 ml of 0.05 M iodine is equivalent to 24.82 mg of Na2S2O3,5H2O. Sodium Thiosulfate FCC Food Grade, US Food Chemical Codex Sodium Thiosulfate Sodium Hyposulfite Na2S2O3·5H2O Formula wt 248.19 DESCRIPTION Sodium Thiosulfate or Sodium Thiosulphate occurs as large, colorless crystals or as a coarse, crystalline powder. It is deliquescent in moist air and effloresces in dry air at a temperature above 33C. Its solutions are neutral or faintly alkaline to litmus. One gram dissolves in 0.5 mL of water. It is insoluble in alcohol. Function: Sequestrant; antioxidant. REQUIREMENTS Identification A. Add a few drops of iodine TS to a 1:10 aqueous solution. The color disappears. B. A 1:20 aqueous solution gives positive tests for Sodium and for Thiosulfate. Assay: Not less than 99.0% and not more than 100.5% of Na2S2O3 after drying. Lead: Not more than 2 mg/kg. Selenium: Not more than 0.003%. Water: Between 32.0% and 37.0%. Sodium Thiosulfate Pentahydrate ACS Sodium Thiosulphate ACS Analytical Reagent Na2S2O3 . 5H2O Formula Wt 248.19 CAS Number 10102-17-7 REQUIREMENTS Assay: 99.5-101.0% Na2S2O3-5H2O pH of a 5% solution: 6.0-8.4 at 25C MAXIMUM ALLOWABLE Insoluble matter: 0.005% Nitrogen compounds (as N): 0.002% Sulfate and sulfite (as SO4): 0.1% Sulfide (S): Passes test

Aakash Manthan Industries and the group companies are manufacturing chlorides since several decades. We have automatic vacuum operated titanium evaporators and SS316 equipments to produce top grade of chemicals. 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, Malaysia, Dubai UAE etc. & sales representative in Chicago, Houston New York & Los Angeles, USA. Associated units are FDA-GMP-GLP certified, Halal and/or Kosher certified, REACH registered, ISO-9001, ISO-22000 HACCP certified.

Contact Sodium Thiosulfate Anhydrous Pentahydrate BP Ph Eur USP, FCC Food, ACS Reagent Grade manufacturers exporters:

Aakash Manthan Industries
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI 400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610, 23723564. FAX: 91-22-23728264

19-06-2022

e-mail: info@mubychem.com

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