Sodium Thiosulfate Pentahydrate Anhydrous BP Ph Eur IP USP Analytical Reagent FCC Food Grade & Sodium Formate Reagent Grade Suppliers Exporters, Manufacturers
Sodium Thiosulfate
CAS Number: pentahydrate 10102-17-7, anhydrous 7772-98-7, BP Ph Eur IP USP Analytical Reagent FCC Food Grade Suppliers Exporters, Manufacturers
Please visit Safety Data Sheet of Sodium Thiosulfate Manufacturers.
Specifications of Sodium Thiosulfate Anhydrous surpassing IP BP USP and Reagent Grade Standards:
Description: It appears as white powder free from foreign particles.
Solubility 10% aqueous solution: Freely soluble in water.
Identification:
(A)Reaction of Sodium
(B)Reaction of Thiosulphate
A solution responds to the test for Sodium and for Thiosulphate
Insoluble Matter: Not more than 0.25%
Calcium: Prescribed Test. No turbidity is produced.
pH: 6 to 8.4
Sulphites and Sulphates: Maximum 0.5%
Heavy Metals: Maximum 0.001%
Sodium Sulphite: Maximum 0.5%
Iron as Fe: Not more than 0.001%
Residual Solvent: To meet the requirement
Assay: Not less than 99% and not more than 100.5% of Na2S2O3 on anhydrous basis.Specifications of Sodium Thiosulfate USP Grade
Na2S2O3-5H2O 248.19Contains not less than 99.0 percent and not more than 100.5 percent of Na2S2O3, calculated on the anhydrous basis.
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: no turbidity is produced.
Heavy metals: the limit is 0.002%.
Specifications of Sodium Thiosulphate BP Ph Eur Grade
Na2S2O3-5H2ODEFINITION
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.
Specifications of Sodium Thiosulfate FCC Food Grade
Sodium Hyposulfite
Na2S2O3-5H2O Formula weight 248.19DESCRIPTION
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 Sodium Thiosulphate Analytical Reagent
Na2S2O3-5H2O
Formula Wt 248.19
CAS Number 10102-17-7REQUIREMENTS
Assay: 99.5-101.0% Na2S2O3-5H2O
pH of a 5% solution: 6.0-8.4 at 25CMAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Nitrogen compounds (as N): 0.002%
Sulfate and sulfite (as SO4): 0.1%
Sulfide (S): Passes test.Please visit Hazard Statement of Sodium Thiosulfate BP Ph Eur IP USP Analytical Reagent FCC Food Grade Suppliers.
Sodium Formate
CAS Number: 141-53-7, Reagent Grade Suppliers Exporters, Manufacturers
Please visit Safety Data Sheet of Sodium Formate Manufacturers.
Specifications of Sodium Formate:
Description: White crystalline powder
Arsenic: maximum 1 ppm
Lead: maximum 1 ppm
Copper & Zinc: maximum 0.005%
pH ( 5% solution): 7 to 8
Clarity of 5% solution: Clear solution
Loss on drying at 105C for 2 hours: maximum 1%
Assay on dry basis: Minimum 98%.
Specifications of Sodium Formate Analytical Reagent Grade
HCOONa --- Formula Weight 68.01 --- CAS Number 141-53-7REQUIREMENTS
MAXIMUM ALLOWABLE
Assay: 99.0% HCOONa
Insoluble matter: 0.005%
Chloride (Cl): 0.001%
Sulfate (SO4): 0.001%
Calcium (Ca): 0.005%
Iron (Fe): 5 ppm
Heavy metals (as Pb): 5 ppm.Please visit Hazard Statement of Sodium Formate Analytical Reagent Grade Suppliers.
Sodium Thiosulfate Pentahydrate Anhydrous BP Ph Eur IP USP Analytical Reagent FCC Food Grade CAS Number pentahydrate 10102-17-7, anhydrous 7772-98-7 & Sodium Formate Analytical Reagent Grade CAS Number 141-53-7 Supplier Exporter, Manufacturer:
Annie Chemie P Ltd
Mumbai 4000010, INDIA
With Agents and offices in UAE, USA, Europe.e-mail: info@anniechemie.com
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September 30, 2023Exporters to USA, Canada, UK, Europe, UAE, Nigeria, Algeria, Turkey, Mexico, Brazil, Chile, Argentina, Australia, Dubai etc.
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