MALLINCKRODT BAKER, INC. -- SODIUM THIOSULFATE -- 6810-00-234-8380 
=====================  Product Identification  =====================

Product ID:SODIUM THIOSULFATE
MSDS Date:12/08/1996
FSC:6810
NIIN:00-234-8380
Status Code:A
=== Responsible Party ===
Company Name:MALLINCKRODT BAKER, INC.
Address:222 RED SCHOOL LANE
City:PHILLIPSBURG
State:NJ
ZIP:08865-2219
Country:US
Info Phone Num:908-859-2151/ 800-582-2537
Emergency Phone Num:908-859-2151
Resp. Party Other MSDS Num.:S5230
Preparer's Name:STRATEGIC SERVICES DIV
Chemtrec Ind/Phone:(800)424-9300
CAGE:70829
=== Contractor Identification ===
Company Name:MALLINCKRODT BAKER,  INC.
Address:222 RED SCHOOL LANE
Box:City:PHILLIPSBURG
State:NJ
ZIP:08865
Country:US
Phone:800-582-2537
CAGE:70829

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

Ingred Name:SODIUM THIOSULFATE
CAS:7772-98-7
RTECS #:XN6476000
= Wt:100.

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

LD50 LC50 Mixture:NO LD50/LC50 INFORMATION FOUND.
Reports of Carcinogenicity:NTP:NO    IARC:NO
Health Hazards Acute and Chronic:ACUTE: EYE CONTACT: MAY CAUSE
    MECHANICAL IRRITATION.  SKIN CONTACT: IRRITATION MAY OCCUR FROM
    PROLONGED SKIN CONTACT. INHALATION: MAY CAUSE IRRITATION TO THE
    RESPIRATORY TRACT. INGESTION: LOW LEVEL OF	TOXICITY BY INGESTION.
    DIARRHEA MAY OCCUR BY INGESTION OF LARGE QUANTITIES. CHRONIC
    EXPOSURE: CHRONIC EXPOSURE MAY CAUSE SKIN EFFECTS.
Explanation of Carcinogenicity:SODIUM THIOSULFATE (CAS# 7772-98-7) IS
    NOT LISTED AS CARCINOGENIC BY NTP AND IARC.
Effects of Overexposure:EYES: IRRITATION. SKIN: IRRITATION. INHALATION:
    RESPIRATORY TRACT IRRITATION, COUGHING, SHORTNESS OF BREATH.
    INGESTION: DIARRHEA.
Medical Cond Aggravated by Exposure:NO INFORMATION FOUND.

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

First Aid:EYE CONTACT: WASH THROUGHLY WITH RUNNING WATER. GET MEDICAL
    ADVICE IF IRRITATION DEVELOPS.  SKIN CONTACT: WASH EXPOSED AREA
    WITH SOAAP AND WATER. GET MEDICAL ADVICE IF IRRITATION DEVELOPS.
    INHALATION:  MOVE 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.

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

Extinguishing Media:USE EXTINGUISHING MEDIA APPROPRIATE FOR SURROUNDING
    FIRE.
Fire Fighting Procedures:USE PROTECTIVE CLOTHING AND BREATHING
    EQUIPMENT APPROPRIATE FOR THE SURROUNDING FIRE.
Unusual Fire/Explosion Hazard:NOT CONSIDERED TO BE AN EXPLOSION HAZARD.

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

Spill Release Procedures:VENTILATE AREA OF LEAK OR SPILL. WEAR
    APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT.	SWEEP UP AND
    CONTAINERIZE FOR RECLAMATION OR DISPOSAL. VACUUMING OR WET SWEEPING
    MAY BE USED TO AVOID DUST DISPERSAL.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:KEEP IN TIGHTLY CLOSED CONTAINER,
    STORED IN A COOL, DRY, VENTILATED AREA. PROTECT FROM PHYSICAL
    DAMAGE. ISOLATE FROM INCOMPATIBLE SUBSTANCES. PRODUCT CONTAINERS
    MAY BE HAZARDOUS WHEN EMPTY SINCE THEY  RETAIN PRODUCT RESIDUES
    (DUST, SOLIDS); OBSERVE ALL WARNINGS AND PRECAUTIONS LISTED FOR
    PRODUCT.

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

Respiratory Protection:FOR CONDITIONS OF USE WHERE EXPOSURE TO THE DUST
    OR MIST IS APPARENT, A HALF-FACE DUST/MIST NIOSH APPROVED
    RESPIRATOR MAY BE WORN. FOR EMERGENCIES OR INSTANCES WHERE THE
    EXPOSURE LIVELS ARE NOT KNOWN,  USE A FULL-FACE POSITIVE-PRESSURE,
    AIR-SUPPLIED RESPIRATOR. WARNING: AIR-PURIFYING RESPIATORS DO NOT
    PROTECT WORKERS IN OXYGEN-DEFICIENT ATMOSPHERES.
Ventilation:DILUTION VENTILATION IS USUALLY ADEQUATE CONTROL FOR THIS
    SUBSTANCE. HOWEVER, IF NOT ADEQUATE, A LOCAL EXHAUST SYSTEM SHOULD
    BE CONSIDERED,
Protective Gloves:WEAR PROTECTIVE GLOVES.
Eye Protection:WEAR SAFETY GOGGLES.
Other Protective Equipment:WEAR CLEAN BODY-COVERING CLOTHING. PROVIDE
    EYE WASH FOUNTAIN AND SAFETY SHOWER IN WORK AREA.
Work Hygienic Practices:WEAR CLEAN-COVERING CLOTHING.
Supplemental Safety and Health

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

HCC:N1
Boiling Pt:>100.C, 212.F
Melt/Freeze Pt:=47.8C, 118.F
Spec Gravity:1.75
Evaporation Rate & Reference:NO INFORMATION FOUND.
Solubility in Water:79 GM/100ML OF WATER.
Appearance and Odor:MONOCLINIC, COLORLESS, ODORLESS CRYSTALS.
Percent Volatiles by Volume:0% @70F

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

Stability Indicator/Materials to Avoid:YES
SODIUM NITRATE, HALOGENS, AND OXIDIZING AGENTS. REACTS WITH ACIDS TO
    RELEASE SULFUR DIOXIDE.
Stability Condition to Avoid:STABLE UNDER NORMAL CONDITIONS OF USE AND
    STORAGE. STABILITY LIMITED IN SOLUTION.
Hazardous Decomposition Products:OXIDES OF SULFUR AND HYDROGEN SULFIDE.
Conditions to Avoid Polymerization:WILL NOT OCCUR.

===================  Toxicological Information	===================

Toxicological Information:NO LD50 OR LC50 INFORMATION FOUND RELATING TO
    NORMAL ROUTES OF OCCUPATIONAL EXPOSURE. SODIUM THIOSULFATE (CAS#
    7772-98-7) IS NOT LISTED AS A CARCINOGEN BY NTP  OR IARC.

=====================  Ecological Information  =====================

Ecological:ENVIRONMENTAL FATE: NO INFORMATION FOUND. ENVIRONMENTAL
    TOXICITY:  NO INFORMATION FOUND.

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

Waste Disposal Methods:WHAT IS NOT RECOVERED OR RECYCLED SHOULD SENT TO
    AN APPROVED WASTE DISPOSAL FACILITY. PROCESSING, USE,OR
    CONTAMINATION OF PRODUCT MAY CHANGE  WASTE MANAGEMENT OPTIONS.
    STATE AND LOCAL DISPOSAL REGULAT IONS MAY DIFFER FROM FEDERAL
    REGULATIONS. DISPOSE OF CONTAINER AND UNUSED CONTENTS IN ACCORDANCE
    WIT H FEDERAL, STATE, AND LOCAL REQUIREMENTS.

===================  MSDS Transport Information  ===================

Transport Information:NOT REGULATED.

=====================  Regulatory Information  =====================

SARA Title III Information:FEDERAL, STATE AND INTERNATIONAL
    REGULATIONS- PART 1: SODIUM THIOSULFATE (7772-98-7): SARA 302:
    RQ=NO;TPQ=NO:  SARA 313 LIST: NOT LISTED. SARA 313 CHEMICAL CATG=
    NO.  FEDERAL, STATE, AND INTERNATIONAL  REGULATIONS-PART2: SODIUM
    THIOSULFATE (7772-98-7) : CERCLA= NO, RCRA 261.33= NO, TSCA 8(D)=
    NO. CHEMICAL WEAPONS CONVENTION: NO   TSCA 12(B): NO    CDTA: NO.
    SARA 311/312: ACUTE: YES, CHRONIC: NO, FI RE: NO, PRESSURE: NO.
    REACTIVITY: NO  (MIXTURE / SOLID)
Federal Regulatory Information:CHEMICAL INVENTORY STATUS  PART 1:
    SODIUM THIOSULFATE (CAS# 7772-98-7) IS LISTED  BY TSCA, EC, JAPAN,
    AUSTRALIA. CHEMICAL INVENTORY STATUS  PART 2: PRODUCT LISTED IN
    KOREA, CANADA -DSL, AND PHIL. IT I S NOT LISTED ON CANADA NDSL.

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