(FDA) GMP Approved ISO-9001:2008 Certificate "REACH" Pre-registered ISO-22000:2005 Kosher Certified Halal Certified HACCP	Mubychem Group, established in 1976, is the pioneer manufacturer of Zinc Chloride, Ammonium Chloride, Calcium Chloride, Potassium Chloride, Sodium Acetate, Sodium Thiosulphate or Sodium Thiosulfate and various other chemicals in India.  Mubychem Group has manufacturing facilities spread across Western India.	For Translating this page in your language use this translation tool.
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Hypo
Sodium Thiosulphate MSDS
Sodium Thiosulfate BP USP IP ACS Food Grade

Sodium Thiosulphate Manufacturers Sodium Thiosulfate

Sodium Thiosulfate
Commercial & Pure P Crystals, Pea Crystal Pentahydrate Anhydrous
IP BP Ph. Eur. USP ACS AR LR FCC Food

Sodium thiosulfate (Na2S2O3), also spelled Sodium thiosulphate, or thio sulphate is a colorless crystalline compound that is more familiar as the pentahydrate, Na2S2O3•5H2O.  Sodium thiosulfate or Sodium thiosulphate is an efflorescent, monoclinic crystalline substance also called sodium hyposulfite or “hypo”.

The thiosulfate anion is tetrahedral in shape and is notionally derived by replacing one of the oxygen atoms by a sulfur atom in a sulfate anion. The S-S distance indicates a single bond, implying that the sulfur bears significant negative charge and the S-O interactions have more double bond character. The first protonation of thiosulphate occurs at sulfur.

Thiosulfate anion characteristically reacts with dilute acids to produce sulfur, sulfur dioxide and water

Na2S2O3 + 2HCl → 2NaCl + S + SO2 + H2O

This reaction is known as a clock reaction, because when the sulfur reaches a certain concentration the solution turns from colourless to a pale yellow. This reaction has been employed to generate colloidal sulfur. When the protonation is conducted at low temperatures, H2S2O3 (thiosulfuric acid) can be obtained. It is a strong acid pKa

Iodometry

In analytical chemistry, the most important use comes from the fact that the thiosulphate anion reacts stoichiometrically with iodine, reducing it to iodide as it is oxidized to tetrathionate:

2 S2O32−(aq) + I2(aq) → S4O62−(aq) + 2 I−(aq)

Due to the quantitative nature of this reaction, as well as the fact that Na2S2O3•5H2O has an excellent shelf-life, it is used as a titrant in iodometry. Na2S2O3•5H2O is also a component of iodine clock experiments.

This particular use can be set up to measure the oxygen content of water through a long series of reactions. It is also used in estimating volumetrically, the concentrations of certain compounds in solution (hydrogen peroxide, for instance), and in estimating the chlorine content in commercial bleaching powder and water.

Gold extraction

Sodium thiosulphate is one component of an alternative lixiviant to cyanide for extraction of gold. It forms a strong complex with gold I) ions, [Au(S2O3)2]3-. The advantage of this approach is that thiosulfate is essentially non-toxic and that ore types that are refractory to gold cyanidation (e.g. carbonaceous or Carlin type ores) can be leached by thiosulphate. Some problems with this alternative process include the high consumption of thiosulfate, and the lack of a suitable recovery technique, since [Au(S2O3)2]3- does not adsorb to activated carbon, which is the standard technique used in gold cyanidation to separate the gold complex from the ore slurry.

Analytical chemistry

Sodium thiosulphate is also used in analytical chemistry. It can, when heated with a sample containing aluminum cation, produce a white precipitation:

2Al3+ + 3S2O32- + 3H2O → 3SO2 + 3S + 2Al(OH)3

Medical

Sodium thiosulfate is used as an antidote to cyanide poisoning. Thiosulphate acts as a sulfur donor for the conversion for cyanide to thiocyanate (which can then be safely excreted in the urine, catalyzed by the enzyme rhodanase.

Sodium thiosulphate has also been used as treatment of calciphylaxis in hemodialysis patients with end-stage renal disease.

Other uses

Sodium thiosulfate or Sodium thiosulphate is used as a component in hand warmers and other chemical heating pads that produce heat by exothermic crystallization of a super cooled solution.
Sodium thiosulfate or Sodium thiosulphate is used in Bleach.
In pH testing of bleach substances.
To de-chlorinate tap water for aquariums or treat effluent from waste water treatments prior to release into rivers. The amount of Sodium thiosulfate or Sodium thiosulphate required can vary with the pH of the water.  A range of approximately 2 to 7 parts sodium thiosulfate to neutralize one part chlorine is generally suggested. To neutralize 1 liter of a 200 ppm chlorine solution, approximately 0.4 - 1.4 grams of sodium thiosulfate would be required.
Sodium thiosulfate or Sodium thiosulphate is used to lower chlorine levels in swimming pools and spas following super chlorination.
It is used to remove iodine stains, e.g. after the explosion of nitrogen triiodide.
Sodium thiosulfate or Sodium thiosulphate is used in bacteriological water assessment.
It is used in the tanning of leather.
Melted sodium thiosulfate is very easy to overcool to room temperature and when crystallization is forced, the sudden temperature jump to 48.3°C can be experienced by touch. It is used in phase change material.
Sodium thiosulfate or Sodium thiosulphate is used in paper industry.
It is used in medicine and as disinfectant. A low amount can be found in natural hot springs water, but they do have trace sodium sulfide too, which is why it can used to treat skin problems and some bathe in it to relieve them of skin problems, rheumatism, although indirectly.
It is systemically for cyanide or arsenic poisoning and topically as an anti­fungal.
It is used in electroplating. As part of patina recipes for copper alloys.
Often used in pharmaceutical preparations as an anionic surfactant to aid in dispersion.

Sodium Thiosulphate Pentahydrate or Sodium Thiosulfate or Sodium Hyposulfite Specifications:

ITC-HSN Code: 2832 30 10
CAS: 10102-17-7 (7772-98-7 Anhydrous)
Formula : Na2S2O3.5H2O
Molecular Weight: 248
Appearance: White Crystalline

Sodium Thiosulphate Commercial

Parameters	Specifications
Appearance	Fine Crystalline
pH of 10% Aqueous Solution	6.5 to 8
Assay	98% minimum
Sulphites & Sulphates	1% max
Heavy Metals	Less than 5 ppm
Iron	Less than 10 ppm

Sodium Thiosulfate Pure

Parameters	Specifications
Appearance	White Uniform Crystals (10 mesh)
pH of 10% Aqueous Solution	6.5 to 8
Assay	99% minimum
Sulphites & Sulphates	0.5% max
Heavy Metals	Less than 5 ppm
Iron	Less than 10 ppm

Sodium Thio Sulfate Photographic P4

Parameters	Specifications
Appearance	Cylindrical Pellets (5 mm to 10 mm)
pH of 10% Aqueous Solution	6.5 to 8
Assay	99.5% minimum
Sulphites & Sulphates	0.2% max
Heavy Metals	Less than 3 ppm
Iron	Less than 5 ppm

Sodium Thio Sulphate Photographic P8 – Recommended For Water Treatment

Parameters	Specifications
Appearance	Cylindrical Pellets (2 mm to 5 mm)
pH of 10% Aqueous Solution	6.5 to 8
Assay	99.5% minimum
Sulphites & Sulphates	1% max
Heavy Metals	Less than 3 ppm
Iron	Less than 5 ppm

We can give both the grades Pentahydrate and Anhydrous. We can give the technical grade small crystals and large crystals too.

 

We offer IP, Sodium Thiosulphate BP IP, Sodium Thiosulfate USP, and Sodium Thiosulfate Extra Pure from our world class FDA approved, ISO-9001-2008 Certified facility, Anmol Chemicals

Sodium Thiosulfate MSDS Sheet, Material Safety Data Sheet

1. Product Identification

Synonyms: Sodium thiosulfate, pentahydrate; thiosulfuric acid, disodium salt, pentahydrate; Sodium thiosulphate, pentahydrate.
CAS No.: 7772-98-7 (Anhydrous) 10102-17-7 (Pentahydrate)
Molecular Weight: 248.17
Chemical Formula: Na2S2O3.5H2O

2. Composition/Information on Ingredients

Ingredient: Sodium Thiosulfate or Sodium Thiosulphate
CAS No.: 7772-98-7
Percent: 100%
Hazardous: Yes

3. Hazards Identification

Emergency Overview
CAUTION! MAY BEi HARMFUL IF SWALLOWED OR INHALED. MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT.
Potential Health Effects
Inhalation: It may cause irritation to the respiratory tract. Symptoms may include coughing and shortness of breath.
Ingestion: Low level of toxicity by ingestion. Diarrhea may occur by ingestion of large quantities.
Skin Contact: Irritation may occur from prolonged skin contact of Sodium Thiosulfate or Sodium Thiosulphate.
Eye Contact: Contact may cause mechanical irritation.
Chronic Exposure: Chronic exposure may cause skin effects.
Aggravation of Pre-existing Conditions: No information found.

4. First Aid Measures

Inhalation: Remove to fresh air. Get medical attention for any breathing difficulty.
Ingestion: Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact: Wash exposed area with soap and water. Get medical advice if irritation develops.
Eye Contact: Wash thoroughly with running water. Get medical advice if irritation develops.

5. Fire Fighting Measures

Fire: Sodium Thiosulphate is not considered to be a fire hazard.
Explosion: It is not considered to be an explosion hazard.
Fire Extinguishing Media: Use any means suitable for extinguishing surrounding fire over Sodium Thiosulphate.
Special Information: Use protective clothing and breathing equipment appropriate for the surrounding fire.

6. Accidental Release Measures

Ventilate area of leak or spill of. Wear appropriate personal protective equipment as specified in Section 8. Spills: Sweep up and containerize for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal.

7. Handling and Storage

Keep Sodium Thiosulphate in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Isolate from incompatible substances. Containers of Sodium Thiosulfate or Sodium Thiosulphate may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.

8. Exposure Controls/Personal Protection

Airborne Exposure Limits: None established.
Ventilation System: In general, dilution ventilation is a satisfactory health hazard control for this substance. However, if conditions of use create discomfort to the worker, a local exhaust system should be considered.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator (NIOSH type N95 or better filters) may be worn. If oil particles (e.g. lubricants, cutting fluids, glycerin, etc.) are present, use a NIOSH type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient atmospheres.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Safety glasses. Maintain eye wash fountain and quick-drench facilities in work area.

9. Physical and Chemical Properties

Appearance: Sodium Thiosulfate is Monoclinic, colorless crystals.
Odor: It is Odorless.
Solubility: Sodium Thiosulphate is soluble 79g/100 ml water @ 4C (39F)
Density: 1.75
pH: No information found.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: > 100C (> 212F)
Melting Point: 48C (118F) Loses water @ 100C (212F)
Vapor Density (Air=1): No information found.
Vapor Pressure (mm Hg): No information found.
Evaporation Rate (BuAc=1): No information found.

10. Stability and Reactivity

Stability: Sodium Thiosulphate is stable under ordinary conditions of use and storage. Stability limited in solution.
Hazardous Decomposition Products: Oxides of sulfur and hydrogen sulfide.
Hazardous Polymerization: Will not occur.
Incompatibilities: Sodium nitrate, halogens, and oxidizing agents. Reacts with acids to release sulfur dioxide.
Conditions to Avoid: Incompatibles.

11. Toxicological Information

No LD50/LC50 information found relating to normal routes of occupational exposure.

--------\Cancer Lists\----------------------------------------------
-------------------------------- ---NTP Carcinogen---
Ingredient --------------------- Known - Anticipated - IARC Category
-------------------------------- ----- - ----------- - -------------
Sodium Thiosulfate (7772-98-7) --- No ------- No --------- None

12. Ecological Information

Environmental Fate: No information found.
Environmental Toxicity: No information found.

13. Disposal Considerations

Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.

14. Transport Information

Not regulated.

15. Regulatory Information

--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient --------------------  TSCA  EC   Japan  Australia
-------------------------------  ----  ---  -----  ---------|
Sodium Thiosulfate (7772-98-7)   Yes   Yes   Yes      Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--------------------------------------- --Canada--
Ingredient --------------------  Korea  DSL   NDSL  Phil.
-------------------------------  -----  ---   ----  -----
Sodium Thiosulfate (7772-98-7)   Yes    Yes   No     Yes
--------\Federal, State & International Regulations - Part 1\----------------
------------------------------- -SARA 302-  ------SARA 313------
Ingredient --------------------  RQ - TPQ -- List  Chemical Catg.
-------------------------------  ---  ---    ----  --------------
Sodium Thiosulfate (7772-98-7)   No    No     No       No
--------\Federal, State & International Regulations - Part 2\----------------
----------------------------------------- -RCRA-    -TSCA-
Ingredient --------------------  CERCLA - 261.33 - 8(d)
-------------------------------  ------   ------   ----
Sodium Thiosulfate (7772-98-7)     No      No       No

Chemical Weapons Convention: No; TSCA 12(b): No; CDTA:  No
SARA 311/312: Acute: Yes; Chronic: No; Fire: No; Pressure: No
Reactivity: No (Pure / Solid)
Australian Hazchem Code: None allocated.
Poison Schedule: None allocated.

US Federal and State Regulations: No products were found.
WHMIS (Canada): Not controlled under WHMIS (Canada).
DSCL (EEC):
This product is not classified according to the EU regulations. S24/25- Avoid contact with skin and eyes. S28- After contact with skin, wash immediately with plenty of water. S37- Wear suitable gloves. S45- In case of accident or if you feel unwell, seek medical advice immediately.
HMIS (U.S.A.):
Health Hazard: 2
Fire Hazard: 0
Reactivity: 0
Personal Protection: E
National Fire Protection Association (U.S.A.):
Health: 2
Flammability: 0
Reactivity: 0
Specific hazard:
Protective Equipment:
Gloves. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent. Wear appropriate respirator when ventilation is inadequate. Safety glasses.

16. Other Information

Disclaimer:
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Our company provides this SODIUM THIOSULPHATE OR SODIUM THIOSULFATE MSDS information contained herein in good faith but makes no representation as to its comprehensiveness or accuracy. This SODIUM THIOSULPHATE OR SODIUM THIOSULFATE MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose.
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Sodium Thiosulphate BP
Sodium Thiosulfate USP
Sodium thiosulfate manufacturers
Sodium thiosulphate manufacturers:

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

 e-mail: info@mubychem.com

Cell Call to Anmol: +91-9821870100
USA & Canadian Customers may Call 773-829-5811

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