Product ID:C7810-C7820-C7830, SODIUM THIOSULFATE
MSDS Date:10/18/1999
FSC:6810
NIIN:00-234-8380
Status Code:A
MSDS Number: CKWKS

Emergency Phone: 800-424-9300

Info Phone: 814-725-8103

Cage: 06JC6

Telephone: 814-725-3330

Cage: 06JC6

SODIUM THIOSULFATE

CAS: 7772-98-7

RTECS: XN6476000

LD50 LC50 Mixture:IPR-MUS LD50: 5200 MG/KG
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Health Hazards Acute and Chronic:ACUTE: MAY BE HARMFUL BY INHALATION,
INGESTION, OR SKIN ABSORPTION. CAUSES EYE AND SKIN IRRITATION.
MATERIAL IS IRRITATING TO MUCOUS MEMBRANES AND UPPER RESPIRATORY
TRACT. TO THE BEST OF OUR KNOWLEDGE , THE CHEMICAL, PHYSICAL, AND
TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY INVESTIGATED.
Explanation of Carcinogenicity:NO DATA PROVIDED BY MANUFACTURER
Effects of Overexposure:ACUTE: MAY BE HARMFUL BY INHALATION, INGESTION,
OR SKIN ABSORPTION. CAUSES EYE AND SKIN IRRITATION. MATERIAL IS
IRRITATING TO MUCOUS MEMBRANES AND UPPER RESPIRATORY TRACT.
Medical Cond Aggravated by Exposure:NO DATA PROVIDED BY MANUFACTURER.

First Aid:IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES WITH COPIOUS
AMOUNTS OF WATER FOR AT LEAST 15 MINUTES. IN CASE OF CONTACT,
IMMEDIATELY WASH SKIN WITH SOAP AND COPIOUS AMOUNTS OF WATER. IF
INHALED, REMOVE T O FRESH AIR. IF NOT BREATHING GIVE ARTIFICIAL
RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN. IF SWALLOWED,
WASH OUT MOUTH WITH WATER PROVIDED PERSON IS CONSCIOUS. CALL A
PHYSICIAN. WASH CONTAMIN ATED CLOTHING BEFORE REUSE.

Flash Point:NONCOMBUSTIBLE
Extinguishing Media:USE EXTINGUISHING MEDIA APPROPRIATE TO SURROUNDING
FIRE CONDITIONS.
Fire Fighting Procedures:WEAR SELF-CONTAINED BREATHING APPARATUS AND
PROTECTIVE CLOTHING TO PREVENT CONTACT WITH SKIN AND EYES
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

Spill Release Procedures:WEAR SELF-CONTAINED BREATHING APPARATUS,
RUBBER BOOTS AND HEAVY RUBBER GLOVES. SWEEP UP, PLACE IN BAG AND
HOLD FOR WASTE DISPOSAL. AVOID RAISING DUST. VENTILATE AREA AND
WASH SPILL SITE AFTER MATERIAL PICKUP IS COMPLETE.
Neutralizing Agent:NO DATA PROVIDED BY MANUFACTURER

Handling and Storage Precautions:DO NOT BREATHE THE DUST. AVOID CONTACT
WITH EYE, SKIN AND CLOTHING. KEEP TIGHTLY CLOSED. AVOID CONTACT
WITH ACID. STORE IN COOL DRY PLACE.
Other Precautions:NO DATA PROVIDED BY MANUFACTURER

Respiratory Protection:WEAR APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR.
Ventilation:MECHANICAL EXHAUST REQUIRED.
Protective Gloves:CHEMICAL RESISTANT GLOVES
Eye Protection:SAFETY GOGGLES
Other Protective Equipment:OTHER PROTECTIVE CLOTHING, SAFETY SHOWER AND
EYE BATH
Work Hygienic Practices:DO NOT BREATHE DUST. AVOID CONTACT WITH EYES,
SKIN AND CLOTHING. AVOID PROLONGED OR REPEATED EXPOSURE. WASH
THOROUGHLY AFTER HANDLING. KEEP TIGHTLY CLOSED. HYGROSCOPIC. AVOID
CONTACT WITH ACID.
Supplemental Safety and Health
NO DATA PROVIDED BY MANUFACTURER

HCC:N1
Spec Gravity:1.667
Appearance and Odor:WHITE CRYSTALLINE POWDER.

STRONG ACIDS, STRONG OXIDIZING AGENTS.
Stability Condition to Avoid:NO DATA PROVIDED BY MANUFACTURER
Hazardous Decomposition Products:SULFUR OXIDES

Waste Disposal Methods:SMALL: CAUTIOUSLY ADD TO LARGE STIRRED EXCESS OF
WATER. ADJUST THE PH TO NEUTRAL, SEPARATE ANY INSOLUBLE SOLIDS OR
LIQUIDS AND PACKAGE THEM FOR HAZARDOUS WASTE DISPOSAL. FLUSH THE
AQUEOUS SOLUTION DOW N THE DRAIN WITH PLENTY OF WATER. THE
HYDROLYSIS AND NEUTRALIZATION REACTIONS MAY GENERATE HEAT AND
FLAMES WHICH CAN BE CONTROLLED BY THE (OTHER )

Toxicological Information:ACUTE EFFECTS: MAY BE HARMFUL BY INHALATION,
INGESTION, OR SKIN ABSORPTION. CAUSES EYE AND SKIN IRRITATION.
MATERIAL IS IRRITATING TO MUCOUS MEMBRANES AND UPPER RESPIRATORY
TRACT. TO THE BEST OF OUR K NOWLEDGE, THE CHEMICAL, PHYSICAL, AND
TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY INVESTIGATED.
RTECS NO: XN6476000, THIOSULFURIC ACID, DISODIUM SALT. TOXICITY
DATA: IPR-MUS LD50: 5200 MG/KG, NY KZAU 53,404,57. ONLY SELECTED
REGISTRY EFFECTS OF CHEMICAL SUBSTANCES (RTECS) DATA IS PRESENTED
HERE. SEE ACTUAL ENTRY IN RTECS FOR COMPLETE INFORMATION.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ecological:DATA NOT YET AVAILABLE.

Transport Information:CONTACT POST SCIENTIFIC, INC. FOR TRANSPORTATION
INFORMATION.

SARA Title III Information:NO DATA PROVIDED BY MANUFACTURER
Federal Regulatory Information:EPA TSCA CHEMICAL INVENTORY, JUNE 1993.
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 1994.
State Regulatory Information:NO DATA PROVIDED BY MANUFACTURER.