Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- Sodium thiosulfate
- Product Code
- 217263
- Chemical Name
- Sodium thiosulfate
Regulatory Identifiers
- CAS Number
- 7772-98-7 Check regulations →
- REACH No.
- A registration number is not available for this substance as the substance or its uses are exempted from registration, the annual tonnage does not require a registration or the registration is envisaged for a later registration deadline.
Identified Uses
Laboratory chemicals, Manufacture of substances
Manufacturers & Suppliers
Sigma-Aldrich
manufacturer
Sigma-Aldrich BVBA/SPRL
distributor
Pegasuslaan 5, B-1831 DIEGEM
+32 3 899 1301
Emergency Contacts
Emergency Contact
070 245245
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
Hazard Classifications
GHS Pictograms
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Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
Synonyms: Sodium thiosulphate; Formula: Na2O3S2; Molecular Weight: 158,11 g/mol; CAS-No.: 7772-98-7; EC-No.: 231-867-5
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| Sodium thiosulphate EC: 231-867-5 | 7772-98-7 | --- | No |
Sigma-Aldrich - 217263
First Aid Measures
Emergency procedures for chemical exposure incidents
If breathed in, move person into fresh air. If not breathing, give artificial respiration.
Wash off with soap and plenty of water.
Flush eyes with water as a precaution.
Never give anything by mouth to an unconscious person. Rinse mouth with water.
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Firefighter Protection
Wear self contained breathing apparatus for fire fighting if necessary.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
Avoid dust formation. Avoid breathing vapours, mist or gas.
Do not let product enter drains.
Sweep up and shovel.
Materials: suitable, closed containers
Related Products
Similar products with comparable safety profiles
Sodium thiosulfate pentahydrate
CAS: 10102-17-7
Sodium thiosulfate, anhydrous
CAS: 7772-98-7
Sodium thiosulphate pentahydrate
CAS: 10102-17-7
Sodium Thiosulfate 2 percent
---
Sodium thiosulfate 0.1 mol/l
CAS: 10102-17-7
Sodium thiosulfate 0.01 mol/l
CAS: 10102-17-7
Sodium Thiosulfate 5 percent
---
Sodium sulfite
CAS: 7757-83-7
Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
For precautions see section 2.2.
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
General industrial hygiene practice.
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Full contact Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: 480 min Material tested:Dermatril® (KCL 740 / Aldrich Z677272, Size M) Splash contact Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: 480 min Material tested:Dermatril® (KCL 740 / Aldrich Z677272, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374 If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Choose body protection in relation to its type, to the concentration and amount of dangerous substances, and to the specific work-place.. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Do not let product enter drains.
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
Stable under recommended storage conditions.
no data available
no data available
no data available
Strong acids, Strong oxidizing agents
Other decomposition products - no data available. In the event of fire: see section 5
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
The data for this section has not been processed yet.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
The data for this section has not been processed yet.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
Regulatory Information
Chemical regulations, safety assessments, and compliance status
The data for this section has not been processed yet.
Frequently Asked Questions
Common questions about safety, handling, and properties
What is the hazard signal word for Sodium thiosulfate?
The signal word is no signal word.
What is the physical form of Sodium thiosulfate?
Sodium thiosulfate is a solid appearing as powder with white color. It has no data available odor.
What is Sodium thiosulfate used for?
Laboratory chemicals, Manufacture of substances
What is the melting point of Sodium thiosulfate?
The melting point is 52 °C - Decomposes on heating. and the boiling point is no data available.