EM SCIENCE DIV OF EM SCIENCE -- 0404185 SODIUM THIOSULFATE,ANHYDROUS  -- 6550-00F046350
<pre>=====================  Product Identification  =====================

Product ID:0404185 SODIUM THIOSULFATE,ANHYDROUS
MSDS Date:08/22/1995
FSC:6550
NIIN:00F046350
=== Responsible Party ===
Company Name:EM SCIENCE DIV OF EM SCIENCE
Box:70
City:GIBBSTOWN
State:NJ
ZIP:08027-5000
Country:US
CAGE:EO656
=== Contractor Identification ===
Company Name:CURTIN MATHESON SCIENTIFIC INC
Address:9999 VETERANS MEMORIAL DR
Box:1546
City:HOUSTON
State:TX
ZIP:77038-2499
Country:US
Phone:713-820-9898
CAGE:15481
Company Name:EM SCIENCE DIV OF EM INDUSTRIES
Address:111 WOODCREST
City:CHERRY HILL
State:NJ
ZIP:08034-0395
Phone:(513) 631-0445
CAGE:EO656

=============  Composition/Information on Ingredients  =============

Ingred Name:SODIUM THIOSULFATE ANHYDROUS; THIOSULFURIC ACID, DISODIUM
    SALT
CAS:7772-98-7
RTECS #:XN6476000

=====================  Hazards Identification  =====================

Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:EYES/SKIN: IRRITATING. INGESTION: GI
    TRACT IRRITATION. LARGE QUANTITY HAS CATHARTIC ACTION. TOXICITY
    LOW, BUT MAY HAVE TOXIC EFFECT ON BLOOD. INHALATION: IRRITATING TO
    NASAL & RESPIRATORY PASSAGES.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION.

=======================  First Aid Measures  =======================

First Aid:SKIN: WASH W/SOAP & WATER THOROUGHLY. EYES: FLUSH THOROUGHLY
    W/WATER FOR 15 MINS IMMEDIATELY. INHALATION: REMOVE TO FRESH AIR.
    GIVE CPR IF NEEDED. INGESTION: IF CONSCIOUS, INDUCE VOMITING.
    OBTAIN MEDI CAL ATTENTION IN ALL CASES.

=====================  Fire Fighting Measures  =====================

Flash Point:NONCOMBUSTIBLE
Extinguishing Media:ANY SUITABLE FOR SURROUNDING MATERIALS
Fire Fighting Procedures:WEAR SCBA.
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES WHEN HEATED TO
    DECOMPOSTION.

==================  Accidental Release Measures  ==================

Spill Release Procedures:EVACUATE AREA OF UNNECESSARY PERSONNEL. WEAR
    SUITABLE PROTECTIVE EQUIPMENT. ELIMINATE ANY IGNITION SOURCES.
    CONTAIN THE RELEASE & ELIMINATE ITS SOURCE SAFELY. TAKE UP &
    CONTAINERIZE FOR PROPER DISPOSA L.

======================	Handling and Storage  ======================

Handling and Storage Precautions:KEEP CONTAINER TIGHTLY SEALED. STORE
    IN A COOL, DRY WELL-VENTILATED AREA AWAY FROM OXIDIZERS.
Other Precautions:DON'T BREATHE DUST. DON'T GET IN EYES, SKIN/ON
    CLOTHING. DON'T TAKE INTERNALLY. RETAINED RESIDUE MAY MAKE EMPTY
    CONTAINERS HAZARDOUS; USE CAUTION!! EYE WASH & SAFETY EQUIPMENT
    SHOULD BE READILY AVAILA BLE.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:IF WORKPLACE EXPOSURE LIMIT IS EXCEEDED, A
    NIOSH/MSHA APPROVED AIR SUPPLIED IS ADVISED. OSHA ALSO PERMITS
    OTHER NIOSH/MSHA RESPIRATORS (NEGATIVE PRESSURE TYPE) UNDER
    SPECIFIED CONDITIONS.
Ventilation:FUME HOOD/W ADEQUATE VENTILATION
Protective Gloves:NITRILE/POLYVINYL CHLORIDE/EQUIVALENT
Eye Protection:SAFETY GLASSES W/SIDE SHIELDS
Other Protective Equipment:EYE WASH & SAFETY EQUIPMENT.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health

==================  Physical/Chemical Properties  ==================

Spec Gravity:1.667
Solubility in Water:COMPLETE
Appearance and Odor:WHITE POWDER/CRYSTALS ODORLESS

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
ACIDS, IODINE, MERCURY, LEAD, SILVER SALTS, METAL NITRATES, OXIDIZERS.
Stability Condition to Avoid:EXCESSIVE HEAT
Hazardous Decomposition Products:SULFUR OXIDES, SODIUM OXIDE.

====================  Disposal Considerations  ====================

Waste Disposal Methods:DISPOSE OF IAW/FEDERAL, STATE & LOCAL
    REGULATIONS.

 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.