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Mubychem Group, established in
1976, is the pioneer manufacturer of Zinc Chloride, Ammonium
Chloride, Calcium Chloride, Potassium Chloride, Sodium Acetate,
Sodium Thiosulphate, Pharmaceutical, Fragrance & Flavor chemicals in
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Buy-Sodium Thiosulfate; Door Delivery
Sodium Thiosulfate BP USP IP ACS FCC Food Grade
Sodium Thio Sulphate or Sodium Thio Sulfate
SODIUM THIOSULFATE MSDS; SODIUM THIOSULPHATE
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 CAS No Percent Hazardous
Sodium Thiosulfate or Sodium Thiosulphate 7772-98-7 100% Yes
3. Hazards Identification
Emergency Overview
--------------------------
CAUTION! MAY BE 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 Thiosulfate or 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 Thiosulfate or 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 Thiosulfate or 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 or Sodium Thiosulphate is
Monoclinic, colorless crystals.
Odor:
It is Odorless.
Solubility:
Sodium Thiosulfate or 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 Thiosulfate or 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.
16. Other Information
NFPA
Ratings:
Health:
1
Flammability:
0
Reactivity:
0
Label Hazard Warning:
CAUTION! MAY BE HARMFUL IF SWALLOWED OR INHALED. MAY CAUSE IRRITATION TO
SKIN, EYES, AND RESPIRATORY TRACT.
Label Precautions:
Avoid contact with eyes, skin and clothing.
Wash thoroughly after handling.
Avoid breathing dust.
Keep container closed.
Use with adequate ventilation.
Label First Aid:
If inhaled, remove to fresh air. Get medical attention for any breathing
difficulty. In case of contact, immediately flush eyes or skin with plenty
of water for at least 15 minutes. Get medical attention if irritation
develops or persists. If swallowed, induce vomiting immediately as directed
by medical personnel. Never give anything by mouth to an unconscious person.
Product Use:
Laboratory Reagent.