Product ID:METHYL ETHYL KETONE
MSDS Date:05/21/1986
FSC:6810
NIIN:00-281-2762
MSDS Number: BDSVF

ARCO CHEMICAL COMPANY

1500 MARKET STREET
PHILADELPHIA, PA 19101
US

Emergency Phone: 215-353-8300

Info Phone: 800-321-7000

Cage: 3D253

PACKAGING SERVICES INC

875 PEARLAND, TX 77581 US

Telephone: 713-485-1457

Cage: 9V846

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

CAS: 78-93-3

RTECS: EL6475000

Fraction By Weight: 99.0%

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:LD50 = 2737 MG/KG (RAT)
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE:IRRITATION OF EYES,SKIN AND
RESPIRATORY TRACT; MAY CAUSE COUGHING,SHORTNESS OF
BREATH,DIZZINESS, INTOXICATION AND COLLASPE.
CHRONIC:DERMATITIS,BLISTERING OF SKIN,CNS DEPRESSION.
Effects of Overexposure:INHAL:RESP.IRRITATION,CNS DEPRESSION,
HEADACHE,DIZZINESS,NUMBNESS.EYES&SKIN:IRRITATION.SKIN;DERMATITS
Medical Cond Aggravated by Exposure:PRE-EXISTING CONDITIONS MAY BE
WORSEN.

First Aid:INHALE:REMOVE TO FRESH AIR, GIVE CPR/O2 IF
NEED;EYES/SKIN:FLUSH W LG AMTS H2O FOR 15 MIN;INGEST:RINSE MOUTH;
GET MEDICAL ATTENTION FOR EYES, BREATHING DIFFICULTY, OR OTHER
SYMPTOMS OF OVEREXPOSURE.

Flash Point Method:TCC
Flash Point:24.0F,-4.4C
Autoignition Temp:Autoignition Temp Text:960F
Lower Limits:2.0
Upper Limits:12.0
Extinguishing Media:DRY CHEMICAL,FOAM,CO2
Fire Fighting Procedures:USE PROTECTIVE CLOTHING.IN CONFINED AREA,USE
SCBA NIOSH APP
Unusual Fire/Explosion Hazard:WHEN MIXED WITH AIR AND EXPOSED TO A
SOURCE OF IGNITION,CAN BURN IN THE OPEN OR EXPLODE.

Spill Release Procedures:USE ABSORBENT MATERIAL AND RECOVER IN A CLOSED
CONTAINER. AVOID INHALATION AND SKIN CONTACT. USE FULL PROTECTIVE
EQUIPMENT AND ADEQUATE VENTILATION.

Handling and Storage Precautions:STORE AWAY FROM EXCESSIVE HEAT,SOURCES
OF IGNITION AND REACTIVE MATERIALS. STORE IN COOL DRY AREA. PROVIDE
ADEQUATE VENTILATION.
Other Precautions:DO NOT INHALE VAPORS. AVOID SKIN AND EYE CONTACT.

Respiratory Protection:USE NIOSH/MESHA APPROVED RESPIRATOR FOR MEK.SCBA
IN CONFINED AREAS
Ventilation:PROVIDE MECHAN(GEN/LOCAL EXHAUST)VENT TO MAINTN Protective Gloves:RUBBER
Eye Protection:SAFETY/CHEM GOGGLES
Other Protective Equipment:FULL PROTECTIVE CLOTHING,SAFETY SHOWER,EYE
WASH STATION
Supplemental Safety and Health

HCC:F2
Boiling Pt:B.P. Text:175F/79C
Vapor Pres:71
Vapor Density:2.5
Spec Gravity:0.81
Evaporation Rate & Reference:2.7 (ETHER=1)
Solubility in Water:APPRECIABLE
Appearance and Odor:CLEAR,COLORLESS LIQUID WITH ACETONE ODOR.
Percent Volatiles by Volume:APPR

Stability Indicator/Materials to Avoid:YES
OXIDIZING MATERIALS.
Stability Condition to Avoid:HEAT,SPARKS,AND OPEN FLAMES
Hazardous Decomposition Products:INCOMPLETE COMBUSTION MAY PRODUCE CO
AND CO2.

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE WITH LOCAL STATE AND
FEDERAL 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.