FISHER SCIENTIFIC CHEMICAL DIV -- S436-500 SODIUM THIOSULFATE ANHYDROUS 21710  -- 6850-00F055499
<pre>=====================  Product Identification  =====================

Product ID:S436-500 SODIUM THIOSULFATE ANHYDROUS 21710
MSDS Date:03/04/1996
FSC:6850
NIIN:00F055499
=== Responsible Party ===
Company Name:FISHER SCIENTIFIC CHEMICAL DIV
Address:1 REAGENT LN
City:FAIR LAWN
State:NJ
ZIP:07410-2802
Country:US
Info Phone Num:201-796-7100/201-796-7523
Emergency Phone Num:201-796-7100/201-796-7523
CAGE:1B464
=== Contractor Identification ===
Company Name:FISHER SCIENTIFIC CO.  CHEMICAL MFG DIV
Address:1 REAGENT LANE
Box:City:FAIRLAWN
State:NJ
ZIP:07410-2802
Country:US
Phone:201-796-7100
CAGE:1B464

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

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

=====================  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: IRRITATION & BURNS. SKIN:
    IRRITATION. INGESTION: MAY CAUSE GI IRRITATION. INHALATION: MAY
    CAUSE RESPIRATORY TRACT IRRITATION.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION, BURNS.

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

First Aid:EYES: FLUSH W/PLENTY OF WATER FOR 15 MINS. SKIN: FLUSH
    W/PLENTY OF SOAP & WATER FOR 15 MINS. INGESTION: IF CONSCIOUS &
    ALERT, GIVE 2-4 CUPFULS OF MILK/WATER. INHALATION: REMOVE TO FRESH
    AIR. GIVE CPR/ OXYGEN IF NEEDED. NOTES TO PHYSICIAN: TREAT
    SYMPTOMATICALLY & SUPPORTIVELY. OBTAIN MEDICAL ATTENTION IN ALL
    CASES.

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

Extinguishing Media:WATER SPRAY, DRY CHEMICAL/CO2.
Fire Fighting Procedures:WEAR A SCBA IN PRESSURE DEMAND MSHA/NIOSH
    APPROVED/EQUIVALENT & FULL PROTECTIVE GEAR.
Unusual Fire/Explosion Hazard:DUSTS AT SUFFICIENT CONCENTRATIONS CAN
    FORM EXPLOSIVE MIXTURES W/AIR. COMBUSTION GENERATES TOXIC FUMES.

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

Spill Release Procedures:USE PROPER PERSONAL PROTECTIVE EQUIPMENT.
    ABSORB W/INERT MATERIAL, THEN PLACE INTO A CHEMICAL WASTE
    CONTAINER. AVOID GENERATING DUSTY CONDITIONS.

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

Handling and Storage Precautions:STORE IN A COOL, DRY WELL VENTILATED
    AREA AWAY FROM INCOMPATIBLE SUBSTANCES. KEEP AWAY FROM STRONG
    ACIDS. USE W/ADEQUATE VENTILATION.
Other Precautions:MINIMIZE DUST GENERATION & ACCUMULATION. AVOID
    CONTACT W/SKIN & EYES. KEEP CONTAINER TIGHTLY CLOSED. AVOID
    INGESTION & INHALATION.

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

Respiratory Protection:ALWAYS USE A NIOSH APPROVED RESPIRATOR WHEN
    NECESSARY.
Ventilation:ADEQUATE TO KEEP AIRBORNE CONCENTRATIONS LOW.
Protective Gloves:PROTECTIVE
Eye Protection:GLASSES/CHEMICAL SAFETY GOGGLES
Other Protective Equipment:PROTECTIVE CLOTHING.
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE
    REUSE. WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health

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

Melt/Freeze Pt:M.P/F.P Text:109F
Vapor Pres:<0.1
Spec Gravity:1.667
pH:6.5-8
Solubility in Water:COMPLETE
Appearance and Odor:SOLID WHITE CRYSTALS/POWDER; ODORLESS

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

Stability Indicator/Materials to Avoid:YES
INCOMPATIBLE MATERIALS, SODIUM NITRITE, STRONG ACIDS, STRONG OXIDIZERS,
    WATER REACTIVE MATERIALS.
Stability Condition to Avoid:HIGH TEMPS, MOISTURE.
Hazardous Decomposition Products:OXIDES OF SULFUR, HYDROGEN SULFIDE.

====================  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.