Product ID:METHYL ETHYL KETONE
MSDS Date:11/19/1993
FSC:6810
NIIN:00-281-2762
MSDS Number: BHCJX

EXXON CORP,EXXON CHEMICAL AMERICAS DIV

HOUSTON, TX 77001
US

Emergency Phone: 713-870-6000,800-424-9300(CHEMTREC)

Info Phone: 713-870-6000

Cage: LO127

EXXONMOBIL CHEMICAL CO, DIV OF EXXON MOBILCORP.

3272 HOUSTON, TX 77253-3272 US

Telephone: 281-870-6000 / 800-726-2015

Cage: 72190

METHYL ETHYL KETONE (2-BUTANONE) (MEK) (SARA III)

CAS: 78-93-3

RTECS: EL6475000

Fraction By Weight: 100%

OSHA PEL 200 PPM/300 STEL

ACGIH TLV: 200 PPM/300STEL 9192

EPA Report Quantity: 5000 LBS

DOT Report Quantity: 5000 LBS

LD50 LC50 Mixture:TLV: 200 PPM
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:EYES: SEVERLY IRRITATING. IF NOT
REMOVED PROMPTLY, MAY RESULT IN PERMANENT DAMAGE. SKIN: PROLONGED
CONTACT MAY IRRITATE AND CAUSE DERMITITIS. INHALATION: VAPORS ARE
IRRITATING TO RESPIRATORY TRACT AND MAY AFFECT THE CNS. INGESTION:
LIQUID ASPIRATED INTO THE RESPIRATORY SYSTEM DURING INGESTION MAY
CAUSE PULMONARY EDEMA.
Explanation of Carcinogenicity:THE COMPONENTS OF THIS PRODUCT HAVE NOT
SHOWN ANY EVIDENCE OF BEING CARCINOGENIC.
Effects of Overexposure:INHALATION: MAY CASUE HEADACHE AND DIZZINESS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:EYES: FLUSH WITH LARGE AMOUNT OF WATER. GET MEDICAL
ATTENTION. SKIN: REMOVE CONTAMINATED CLOTHING. WASH AREA WITH SOAP
AND WATER. GET MEDICAL ATTENTION IF IRRITATION PERSISTS.
INHALATION: REMOVE TO FR ESH AIR. IF NOT BREATHING GIVE CPR.
GETMEDICAL ATTENTION. INGESTION: DO NOT INDUCE VOMITING. KEEP AT
REST. GET MEDICAL ATTENTION.

Flash Point Method:TCC
Flash Point:25.0F,-3.9C
Autoignition Temp:Autoignition Temp Text:860F
Lower Limits:1.8
Upper Limits:11.5
Extinguishing Media:USE WATER FOG, ALCOHOL TYPE FOAM, OR DRY CHEMICAL.
USE WATER SPRAY TO COOL FIRE EXPOSED SURFACES.
Fire Fighting Procedures:EITHER ALLOW FIRE TO BURN UNDER CONTROLLED
CONDITIONS OR EXTINGUISH WITH ALCOHOL TYPE FOAM AND DRY CHEMICAL.
TRY TO COVER LIQUID SPILLS WITH FOAM.
Unusual Fire/Explosion Hazard:"EMPTY" CONTAINERS RETAIN PRODUCT RESIDUE
AND CAN BE DANGEROUS. DO NOT CUT, WELD, BRAZE, SOLDER, DRILL, GRIND
OR EXPOSE SUCH CONTAINERS TO SOURCES OF IGNITION.

Spill Release Procedures:ELIMINATE SOURCES OF IGNITION. PREVENT
ADDITIONAL DISCHARGE OF MATERIAL, IF POSSIBLE TO DO SO WITHOUT
HAZARD. FOR SMALL SPILLS IMPLEMENT CLEANUP PROCEDURES.

Handling and Storage Precautions:STORAGE TEMPERATURE: AMBIENT. USE
PROPER GROUNDING EQUIPMENT.
Other Precautions:NONE.

Respiratory Protection:NIOSH/MSHA APPROVED RESPIRATORS MAY BE NECESSARY
TO PREVENT OVEREXPOSURE BY INHALATION.
Ventilation:THE USE OF MECHNAICAL DILUTION VENTILATION IS RECOMMENDED
WHENEVER THIS PRODUCT IS USED IN CONFINED SPACES.
Protective Gloves:LONG SLEEVED CHEMICAL RESISTANT GLOVES
Eye Protection:CHEMICAL SAFETY GOGGLES AND FACESHIELD
Other Protective Equipment:WEAR LONG SLEAVES. HAVE EYE WASH STATION AND
SAFETY SHOWER AVAILABLE.
Work Hygienic Practices:WASH AFTER HANDLING AND BEFORE EATING,
DRINKING, OR SMOKING. LAUNDER CONTAMINATED CLOTHING BEFORE REUSE.
Supplemental Safety and Health
NONE

HCC:F2
Boiling Pt:B.P. Text:175 TO 177F
Melt/Freeze Pt:M.P/F.P Text:<32F,<0C
Vapor Pres:83 AT 75F
Vapor Density:>1.0,AIR=1
Spec Gravity:0.81
Viscosity:1 CST @68F
Evaporation Rate & Reference:6.0 (N-BUTYL ACETATE=1)
Solubility in Water:26 WT % AT 68F
Appearance and Odor:CLEAR COLORLESS LIQUID.
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:YES
CAUSTICS, AMINES, ALKANOLAMINES, ALDEHYDES, AMMONIA, STRONG OXIDIZING
AGENTS, AND CHLORINATED COMPOUNDS.
Hazardous Decomposition Products:NONE

Waste Disposal Methods:CONSULT AN EXPERT ON DISPOSAL OF RECOVERED
MATERIAL AND ENSURE CONFORMITY TO LOCAL DISPOSAL 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.