Sodium Thiosulfate or Sodium Thiosulphate Penyahydrate Anhydrous Manufacturers

We are manufacturers of Sodium Thiosulfate or Sodium Thiosulphate Penyahydrate Anhydrous BP Ph Eur USP FCC Reagent, Pharmaceutical Excipients in India. We offer Halal and Kosher Sodium Thiosulfate or Sodium Thiosulphate Penyahydrate Anhydrous BP Ph Eur USP FCC Reagent made in an ISO9001, ISO22000 (FSSC22000) cGMP and GLP certified facility.

Sodium Thiosulfate or Sodium Thiosulphate Penyahydrate Anhydrous BP Ph Eur USP FCC Reagent Manufacturers Suppliers

We are manufacturers of Sodium Thiosulfate or Sodium Thiosulphate Penyahydrate Anhydrous BP Ph Eur USP FCC Reagent Grade.

Specifications of Sodium Thiosulfate Anhydrous Special grade surpassing all the standards:
Description: It appears as white powder free from foreign particles.
Solubility: Freely soluble in water. 10% aqueous solution is clear and colorless.
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 0.2%
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.

This grade of material can pass all the tests prescribed by IP BP Ph Eur USP FCC Food and reagent Grade.

Contains not less than 99.0 percent and not more than 100.5 percent of Na2S2O3, calculated on the anhydrous basis.

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 Pentahydrate BP Ph Eur Grade Specifications
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 Pentahydrate FCC Food Grade, US Food Chemical Codex
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 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.

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 or Sodium Thiosulphate 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

Sodium Thiosulfate or Sodium Thiosulphate Penyahydrate Anhydrous BP Ph Eur USP FCC Reagent manufacturers at:

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

They who love thee on this earth, keep calling on thee and chanting thy beads
Lest thou forgetest.

They assign the credit of their hard work to your blessings
They keep you amused.

They come to thy temple with baskets of fruits, as if you were a glutton
They deny the same to their children.

They offer you milk for a bath and burn the ghee
They hardly understand the meaning of it.

They bring gold and diamonds. They come with beating of drums
They love to advertise their offerings.

They offer you a small bribe as advance for booty, called lottery
They love to dream.

I do not bow down at your door
I do not bargain for booty
Your promise of the heaven does not lure me
Your hell-fire does not scare me
I do not even know the proper method of prayer
I do not offer any thing to you
Ages have gone by and I have not seen you my lord
Yet my love for you keeps waiting for you