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Sodium Thiosulphate BP Sodium Thiosulfate USP ACS ..

Anmol Chemicals Group, established in 1976, is the pioneer manufacturer of Specialty chemicals, Pharmaceutical Excipients, Fragrance & Flavor chemicals in India. Anmol Chemicals Group has manufacturing facilities spread across Western India, representatives in Houston Chicago USA and toll manufacturers in China. We also have toll manufacturing units for processing chemicals in a few countries around the world. We make IP, BP, USP, Ph. Eur., FCC or Food Grade, ACS, AR or Analytical Reagent Grade, LR or Laboratory Reagent Grade, Pure and Technical Grades of various chemicals. All our items are analyzed to meet the required standards.

Our manufacturing facility is FDA GMP approved and ISO-9001-2008, ISO 22000-2005 HACCP , FSSAI certified. We are offering products manufactured as per Kosher and Halal approved certified method. We are pre-registered with "Reach" for export to European countries. We can give all solid chemical materials as per specified size or shape.

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Sodium Thiosulfate Sodium Thiosulphate Commercial

Sodium Thiosulfate Anhydrous Pentahydrate SDS of Manufacturers

Sodium Thiosulphate Sodium Thiosulfate Manufacturers Sodium Thiosulfate Thiosulphate Anhydrous Manufacturers

Sodium Thiosulfate USP

Na2S2O3·5H2O 248.19
Sodium Thiosulfate USP
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.
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

Sodium Thiosulphate BP

99.0 per cent to 101.0 per cent of Na2S2O3,5H2O.

Transparent, colorless crystals, efflorescent in dry air.
Very soluble in water, practically insoluble in ethanol 96 per cent. It dissolves in its water of crystallization at about 49°C.

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.

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.
6.0 to 8.4 for the freshly prepared solution S.
Sulphates and sulphites
Maximum 0.2 per cent.
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.

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


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 33°. 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.


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

American Chemical Society Reagent Grade
Na2S2O3 . 5H2O
Formula Wt 248.19
CAS Number 10102-17-7

Assay: 99.5-101.0% Na2S2O3-5H2O
pH of a 5% solution: 6.0-8.4 at 25C

Insoluble matter: 0.005%
Nitrogen compounds (as N): 0.002%
Sulfate and sulfite (as SO4): 0.1%
Sulfide (S): Passes test



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Last updated 17-apr-17

Calcium Chloride in Jumbo Bags Drum Packing Paletized and Shrink Wrapped Packing for Exports to USA UAE Africa Tanzania Turkey Kenya Dubai

Exporters to USA, Canada, UAE, Europe, South Africa, Tanzania, Kenya, Egypt, Turkey, Nigeria, Uganda, Brazil, Chile, Argentina, Dubai, Cameroon, Mexico, Brazil, Chile, Argentina, Korea, Thailand, Malaysia, Indonesia, Australia, China, Germany, France, etc.

Representatives in New York, Houston - Texas, Chicago - Illinois, Los Angeles.

Fast Selling IP BP USP ACS FCC Food Grades of Chemicals by Anmol Chemicals
Ammonium bicarbonate ----- Ammonium Chloride ------- Benzyl Alcohol
Boric Acid --------------- Borax; Sodium Borate ---- Calcium Chloride
Calcium Hydroxide -------- Calcium Saccharate ------ Citric Acid
Calcium Phosphate -------- Calcium Oxide ----------- Calcium Sulfate
Chromic Chloride --------- Gentian Violet ---------- Magnesium Chloride
Magnesium Sulfate -------- Maleic Acid ------------- Manganese Chloride
Manganese Sulfate -------- Methylene Blue ---------- Potassium Chloride
Potassium Hydroxide Pellets - Potassium Phosphate -- Potassium Bitartrate
Sodium Phosphate --------- Sodium Propionate ------- Sodium Acetate
Sodium Bicarbonate ------- Sodium Hydroxide -------- Sodium Thiosulfate
Urea --------------------- Zinc Chloride ----------- Zinc Sulphate

Exporters to USA, UAE, Europe, South Africa, Tanzania, Kenya, Egypt, Turkey, Nigeria, Uganda, Brazil, Chile, Argentina, Dubai etc.

Representatives in New York, Houston - Texas, Chicago - Illinois, Los Angeles.

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