ISO9001:2000 Certified
Material Safety Data Sheet
Sodium thiosulfate solutions, 0.01N - 1.0N
Section 1 - Chemical Product and Company Identification
MSDS Name:
Sodium thiosulfate solutions, 0.01N - 1.0N
Catalog Numbers:
Q00052, Q00152, Q02052, Q03052, Q04052, Q05052, Q05152, Q06052, Q08052, Q56052
Synonyms:
Company Identification:
Qorpak
1195 Washington Pike
Bridgeville, PA 15017
Company Phone Number:
(412) 257-3100
Emergency Phone Number:
(800) 424-9300
CHEMTREC Phone Number:
(800) 424-9300
Section 2 - Composition, Information on Ingredients
Percent
CAS# Chemical Name:
7772-98-7 Sodium thiosulfate 0.21-21
497-19-8 Sodium Carbonate 0 - 0.017
7732-18-5 Water Balance
Section 3 - Hazards Identification
EMERGENCY OVERVIEW
Appearance: Colorless
Caution! May cause irritation. This is expected to be a low hazard for usual industrial
handling.
Target Organs: None.
Potential Health Effects
Eye:
May cause mild eye irritation.
Skin:
May cause skin irritation.
Ingestion:
Ingestion may cause sore throat, coughing, nausea, abdominal pain.
Inhalation:
Inhalation may cause coughing, respiratory irritation, dyspnea, pulmonary edema.
Material Safety Data Sheet
Sodium thiosulfate solutions, 0.01N - 1.0N
Chronic:
Exposure may result in mucous membrane irritation, dermatitis, conjunctivitis.
Section 4 - First Aid Measures
Eyes:
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids until no evidence
of chemical remains. Get medical aid.
Skin:
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get
medical aid if irritation develops or persists.
Ingestion:
Give conscious victim 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get
medical aid.
Inhalation:
Move victim to fresh air immediately. Give artificial respiration if necessary. If breathing is difficult, give oxygen. Get
medical aid.
Notes to Physician:
Treat symptomatically and supportively.
Section 5 - Fire Fighting Measures
General Information:
Negligible fire and explosion hazard when exposed to heat or flame. Move container if possible, avoid breathing vapors
or dust.
Extinguishing Media:
For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.
Autoignition Temperature:
Not applicable.
Flash Point:
Not applicable.
NFPA Rating:
CAS# 7772-98-7: Not published.
Explosion Limits:
Lower: No information Upper: No information
Section 6 - Accidental Release Measures
General Information:
Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spills with absorbent (vermiculite, sand, fuller's earth) and place in plastic bags for later disposal. Scoop
material into suitable (plastic or glass) container, label for disposal.
Material Safety Data Sheet
Sodium thiosulfate solutions, 0.01N - 1.0N
Section 7 - Handling and Storage
Handling:
Avoid prolonged or repeated contact with skin. Avoid ingestion and inhalation. Use with adequate ventilation.
Storage:
Store at room temperature. Keep away from heat and incompatible substances.
Section 8 - Exposure Controls, Personal Protection
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits
Chemical Name: ACGIH NIOSH OSHA
Sodium thiosulfate None of the None of the None of the
components are on this components are on this components are on this
list. list. list.
OSHA Vacated PELs
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection
regulations in 29 CFR 1910.133.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29CFR 1910.134. Always use a NIOSH-approved respirator when
necessary.
Section 9 - Physical and Chemical Properties
Physical State: Liquid
Color: Colorless
Odor: None reported
pH: No information found.
Vapor Pressure: 14 mm Hg
Vapor Density: No information found.
Evaporation Rate: >1 (ether=1)
Viscosity: No information found.
Boiling Point: 212掳F ( 100.00掳C)
Freezing/Melting Point: 32掳F ( 0.00掳C)
Decomposition Temperature: No information found.
Material Safety Data Sheet
Sodium thiosulfate solutions, 0.01N - 1.0N
Solubility in water: No information found.
Specific Gravity/Density: 1.0-1.1
Molecular Formula: Mixture
Molecular Weight No information found.
Section 10 - Stability and Reactivity
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials
Sodium nitrite, metal nitrates, chlorine solutions, acids.
Hazardous Decomposition Products
Hydrogen sulfide, sodium oxide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
Hazardous Polymerization
Has not been reported.
Section 11 - Toxicological Information
RTECS:
CAS# 7772-98-7: XN6476000.
LD50/LC50:
CAS# 7772-98-7:
No information found.
Carcinogenicity:
CAS# 7772-98-7: Not listed as a carcinogen by ACGIH, IARC, NIOSH, NTP, OSHA, or CA Prop 65.
Epidemiology:
sodium thiosulfate is an eye, skin, mucous membrane irritant. Large doses have a cathartic action.
Teratogenicity:
Reproductive:
Mutagenicity:
Neurotoxicity:
Section 12 - Ecological Information
No information found.
Material Safety Data Sheet
Sodium thiosulfate solutions, 0.01N - 1.0N
Section 13 - Disposal Considerations
Dispose of in accordance with Federal, State, and local regulations.
Section 14 - Transport Information
US DOT
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
Section 15 - Regulatory Information
US Federal
TSCA
CAS# 7772-98-7 is listed on the TSCA Inventory.
SARA Reportable Quantities (RQ)
None of the components are on this list.
CERCLA/SARA Section 313
None of the components are on this list.
OSHA - Highly Hazardous
None of the components are on this list.
US State
State Right to Know
California Regulations
European/International Regulations
Canadian DSL/NDSL
CAS# 7772-98-7 is listed on Canada's DSL List.
Canada Ingredient Disclosure List
CAS# 7772-98-7 is not listed on Canada's Ingredient Disclosure List.
Section 16 - Other Information
MSDS Creation Date: November 16, 1997
Revision Date: March 26, 2007
Information in this MSDS is from available published sources and is believed to be accurate. No warranty,
express or implied, is made and Qorpak assumes no liability resulting from the use of this MSDS. The user
must determine suitability of this information for his application.
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