MALLINCKRODT INC -- HYDROFLUORIC ACID 48%  -- 6810-00-237-2920
<pre>=====================  Product Identification  =====================

Product ID:HYDROFLUORIC ACID 48%
MSDS Date:01/01/1985
FSC:6810
NIIN:00-237-2920
=== Responsible Party ===
Company Name:MALLINCKRODT INC
Address:675 MCDONNELL BLVD
Box:5840
City:SAINT LOUIS
State:MO
ZIP:63134
Country:US
Info Phone Num:314-539-1600
Emergency Phone Num:314-539-1600
CAGE:37940
=== Contractor Identification ===
Company Name:MALLINCKRODT INC
Address:675 MCDONNELL BLVD
Box:5840
City:ST. LOUIS
State:MO
ZIP:63134
Country:US
Phone:314-539-1600
CAGE:37940

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

Ingred Name:HYDROGEN FLUORIDE  (SARA III)
CAS:7664-39-3
RTECS #:MW7875000
Fraction by Wt: 48%
OSHA PEL:3 PPM/6 STEL (F)
ACGIH TLV:C 3 PPM (F); 9192
EPA Rpt Qty:100 LBS
DOT Rpt Qty:100 LBS

Ingred Name:WATER
CAS:7732-18-5
RTECS #:ZC0110000
Fraction by Wt: 52%

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

First Aid:SPEED IN REMOVING PATIENT FROM CONTAMINATED ATMOSPHERE AND
    REMOVING ACID FROM SKIN OR EYES IS VERY IMPORTANT. FLUSH SKIN WITH
    PLENTY OF WATER-USE SHOWER.IRRIGATE EYES IMMEDIATELY WITH WATER FOR
    15-30  MINUTES. GET MEDICAL HELP.

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

Fire Fighting Procedures:SEE SUPPLEMENTAL DATA. WEAR SPECIAL PROTECTIVE
    CLOTHING.
Unusual Fire/Explosion Hazard:LIQUID;VAPORS ARE CORROSIVE AND WILL
    ATTACK STEEL AND OTHER METALS TO GENERATE EXPLOSIVE HYDROGEN.

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

Spill Release Procedures:GOOD VENTILATION IS A NECESSITY. FLUSH SPILLS
    AWAY WITH WATER IMMEDIATELY.NEUTRALIZE RESIDUE WITH LIME AND AGAIN
    WASH WITH WATER. NEUTRALIZING WITH LIMESTONE WILL RELEASE CARBON
    DIOXIDE GAS.

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

Handling and Storage Precautions:DO NOT CONTACT GLASS,CERAMIC OR OTHR
    SILICA CONTAINING MATERIAL OR CONTAINERS AS REACTION IS RAPID WITH
    HEAT AND GAS EVOLUTION.
Other Precautions:PROTECT AGAINST PHYSICAL DAMAGE. STORE IN
    WELL-VENTILATED AREA,SEPARATED FROM OTHER STORAGE.WEAR NEOPRENE
    GLOVES,FULL FACE SHIELD, PLASTIC COVERALLS,FACE MASK WITH CANISTER.

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

Respiratory Protection:U.S.BUREAU OF MINES APPROVED SELF-CONTAINED OR
    AIR SUPPLIED BREATHER
Ventilation:LOCAL-YES
Protective Gloves:RUBBER NEOPRENE
Eye Protection:SAFETY GOGGLES
Other Protective Equipment:FULL FACE MASK,FULL COVERAGE OF
    CLOTHING,RUBBER SHOES
Supplemental Safety and Health
THE AMOUNT OF HYDROFLUORIC ACID VAPORS RELEASED FROM RUPTURED
    CONTAINERS WILL INCREASED BY HEAT. DILUTION WITH WATER WILL
    GENERATE HEAT AND ALSO INCREASE CORROSION ON STEEL CONTAINERS.

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

HCC:C1
Boiling Pt:B.P. Text:152
Vapor Pres:130
Solubility in Water:COMPLETE
Appearance and Odor:COLORLESS LIQUID,SHARP ACIDIC ODOR,FUMES IN AIR

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

GLASS,CONCRETE,CERTAIN METALS,NATURAL RUBBER, MANY ORGANICS.
Hazardous Decomposition Products:HYDROFLUORIC ACID GAS
Conditions to Avoid Polymerization:HYDROGEN FLUORID VAPORS RELEASED
    FROM UNCONFINED ACID.

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

Waste Disposal Methods:NEUTRALIZE AS ABOVE WITH LIME OR LIMESTONE AND
    BURY IN APPROVED AREAS,IF PERMISSABLE FLUORIDE SALTS ARE TOXIC AND
    DISPOSAL BY A DISPOSAL CONTRACTOR MAY BE REQUIRED.

 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.