SIGMA CHEMICAL COMPANY -- B85307 2,3-BUTANEDIONE 97%  -- 6810-00F056216
<pre>=====================  Product Identification  =====================

Product ID:B85307 2,3-BUTANEDIONE 97%
MSDS Date:01/01/1997
FSC:6810
NIIN:00F056216
=== Responsible Party ===
Company Name:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:SAINT LOUIS
State:MO
ZIP:63178-5000
Country:US
Info Phone Num:314-771-5765/800-325-3010
Emergency Phone Num:314-771-5765/800-325-3010
CAGE:21076
=== Contractor Identification ===
Company Name:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Phone:314-771-5765
CAGE:21076

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

Ingred Name:2,3-BUTANEDIONE   *98-1*
CAS:431-03-8
RTECS #:EK2625000
Fraction by Wt: 97%

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

LD50 LC50 Mixture:ORAL LD50(RAT): 1580 MG/KG
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:HARMFUL IF INGESTED, INHALED/ABSORBED
    THROUGH SKIN. INHALATION: IRRITATING TO THE EYES, MUCOUS MEMBRANES
    & UPPER RESPIRATORY TRACT. SKIN: IRRITATION.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION, NAUSEA, HEADACHE, VOMITING.

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

First Aid:EYES/SKIN: FLUSH W/COPIOUS AMOUNTS OF WATER FOR 15 MINS.
    INHALATION: REMOVE TO FRESH AIR. GIVE CPR/OXYGEN IF NEEDED.
    INGESTION: WASH OUT MOUTH W/WATER IF CONSCIOUS. OBTAIN MEDICAL
    ATTENTION IN ALL CAS S.

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

Flash Point:45F
Extinguishing Media:CO2, DRY CHEMICAL POWDER/APPROPRIATE FOAM.
Fire Fighting Procedures:WEAR SCBA & PROTECTIVE CLOTHING. USE WATER
    SPRAY TO COOL FIRE EXPOSED CONTAINERS. WATER MAY BE EFFECTIVE FOR
    COOLING, BUT MAY NOT EFFECT EXTINGUISHMENT.
Unusual Fire/Explosion Hazard:FLAMMABLE. VAPOR MAY TRAVEL CONSIDERABLE
    DISTANCE TO SOURCE OF IGNITION/FLASH BACK. CONTAINER EXPLOSION MAY
    OCCUR UNDER FIRE CONDITIONS. (SEE SUPP)

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

Spill Release Procedures:EVACUATE AREA. SHUT OFF SOURCES OF IGNITION.
    WEAR SCBA, RUBBER BOOTS & HEAVY RUBBER GLOVES. COVER W/AN ACTIVATED
    CARBON ABSORBENT, TAKE UP & PLACE IN CLOSED CONTAINERS. TRANSPORT
    OUTDOORS. VENTILATE &  WASH SITE AFTER MATERIAL PICKUP IS COMPLETE.

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

Handling and Storage Precautions:KEEP AWAY FROM HEAT, SPARKS & OPEN
    FLAME. STENCH & REFRIGERATE. KEEP TIGHTLY CLOSED.
Other Precautions:AVOID CONTACT W/EYES, SKIN/CLOTHING. DON'T BREATHE
    VAPOR. AVOID CONTACT W/METALS. NO SMOKING. USE NON-SPARKING TOOLS.

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

Respiratory Protection:WEAR APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR.
Ventilation:CHEMICAL FUME HOOD.
Protective Gloves:CHEMICAL RESISTANT
Eye Protection:SAFETY GOGGLES
Other Protective Equipment:PROTECTIVE CLOTHING, SAFETY SHOWER & EYE
    BATH.
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE
    REUSE. WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
FIRE HZRD CONT'D: FORMS EXPLOSIVE MIXTURES IN AIR. AUTOIGNITION TEMP:
    545F.

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

Boiling Pt:B.P. Text:190.4F
Vapor Pres:52.2
Vapor Density:3
Spec Gravity:0.981
Appearance and Odor:YELLOW LIQUID

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

Stability Indicator/Materials to Avoid:YES
OXIDIZING AGENTS, STRONG BASES, REDUCING AGENTS, METALS.
Stability Condition to Avoid:HEAT, SPARKS & OPEN FLAME.
Hazardous Decomposition Products:COMBUSTION: CO, CO2.

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

Waste Disposal Methods:BURN IN A CHEMICAL INCINERATOR EQUIPPED W/AN
    AFTERBURNER & SCRUBBER BUT EXERT EXTRA CARE IN IGNITING AS THIS
    MATERIAL IS HIGHLY FLAMMABLE, 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.