Product ID:METHYL ETHYL KETONE
MSDS Date:03/05/1990
FSC:6810
NIIN:00F026538
MSDS Number: BQJLW

MALLINCKRODT INC

PARIS BYPASS
PARIS, KY 40361
US

Emergency Phone: 606-987-7000

Info Phone: 606-987-7000

Cage: 62910

MALLINCKRODT SPECIALTY CHEMICALS CO

PHILLIPSBURG, NJ 08865 US

Telephone: 908-859-2151

Cage: 62910

2-BUTANONE (METHYL ETHYL KETONE) (MEK)

CAS: 78-93-3

RTECS: EL6475000

Fraction By Weight: 100%

OSHA PEL 200 PPM

ACGIH TLV: 590 MG/CUM

EPA Report Quantity: 5000 LBS

DOT Report Quantity: 5000 LBS

LD50 LC50 Mixture:ORAL LD50 (RAT): 2737 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:INHALATION: NOSE & THROAT IRRITATION,
HEADACHE, DIZZINESS, NAUSEA, SHORTNESS OF BREATH, VOMITING, CENTRAL
NERVOUS SYSTEM DEPRESSION & UNCONSCIOUSNESS. INGESTION: DIGESTIVE
TRACT IRRITATION, ABDOMINAL SPASM, NAUSEA, & VOMITING. SKIN:
IRRITATION, & DISCOLORATION. EYES: IRRITATION & DAMAGE.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:INHALATION: NARCOSIS. SKIN: DEFATTING &
DERMATITIS.
Medical Cond Aggravated by Exposure:SKIN DISORDERS, EYE PROBLEMS,
IMPAIRED RESPIRATORY FUNCTION

First Aid:INGESTION: INDUCE VOMITING BY GIVING TWO GLASSES OF WATER OR
MILK & STICK FINGER DOWN THROAT. NEVER GIVE ANYTHING BY MOUTH TO AN
UNCONSCIOUS PERSON. INHALATION: REMOVE TO FRESH AIR. IF BREATHING
STOPS , GIVE ARTIFICIAL RESPIRATION. IF BREATHING IS DIFFICULT,
GIVE OXYGEN. EYES: FLUSH W/PLENTY OF WATER FOR AT LEAST 15 MINS.
OBTAIN MEDICAL ATTENTION IN ALL CASES.

Flash Point Method:CC
Flash Point:-6C (21F)
Lower Limits:1.8%
Upper Limits:11.5%
Extinguishing Media:DRY CHEMICAL, FOAM, CO2
Fire Fighting Procedures:WATER SPRAY MAY BE USED TO KEEP FIRE EXPOSED
CONTAINERS COOL. WEAR FULL PROTECTIVE CLOTHING & NIOSH APPROVED
SELF-CONTAINED BREATHING APPARATUS.
Unusual Fire/Explosion Hazard:VAPOR-AIR MIXTURES ARE EXPLOSIVE WITHIN
FLAMMABLE LIMITS. VAPORS CAN FLOW ALONG SURFACES TO DISTANT
IGNITION SOURCE & FLASHBACK.

Spill Release Procedures:VENTILATE AREA. REMOVE ALL IGNITION SOURCES.
WEAR PROPER PROTECTIVE CLOTHING. DIKE & CONTAIN. RECOVER LIQUID
USING NON-SPARKING TOOLS & EQUIPMENT. COLLECT AS HAZARDOUS WASTE &
ATOMIZE IN SUITABLE RCRA APPROVED COMBUSTION CHAMBER. SEE SUPP.

Handling and Storage Precautions:KEEP IN TIGHTLY CLOSED CONTAINER.
STORE IN COOL, DRY,WELL-VENTILATED AREA. BOND/GROUND CONTAINERS FOR
TRANSFERS. USE W/ADEQUATE VENTILATION.
Other Precautions:AVOID CONTACT W/EYES, SKIN & CLOTHING. SPARK-PROOF
TOOLS & EXPLOSION-PROOF EQUIPMENT SHOULD BE USED IN THE STORAGE &
HANDLING AREA.

Respiratory Protection:USE FULL FACEPIECE CHEMICAL CARTRIDGE RESPIRATOR
WHEN TLV IS EXCEEDED
Ventilation:LOCAL &/OR GENERAL EXHAUST TO KEEP BELOW EXPOSURE LIMITS
Protective Gloves:IMPERVIOUS
Eye Protection:CHEMICAL SAFETY GOGGLES
Other Protective Equipment:IMPERVIOUS CLOTHING, BOOTS, LAB COAT, APRON,
COVERALLS, FULL FACE SHIELD, EYE WASH FOUNTAIN, QUICK-DRENCH
FACILITIES
Supplemental Safety and Health
SPILL (CONT'D): ABSORB W/VERMICULITE, DRY SAND, EARTH OR SIMILAR
MATERIAL FOR DISPOSAL AS HAZARDOUS WASTE.

Boiling Pt:B.P. Text: 80C (176F)
Melt/Freeze Pt:M.P/F.P Text:-86C, -122F
Vapor Density:2.5
Spec Gravity:0.805
Evaporation Rate & Reference:(ETHER = 1): 2.7
Solubility in Water:29G IN 100G WATER
Appearance and Odor:CLEAR, COLORLESS LIQUID

Stability Indicator/Materials to Avoid:YES
OXIDIZING MATERIALS, CHLOROFORM, CHLOROSULFONIC ACID, OLEUM, POTASSIUM
T-BUTOXIDE, HYDROGEN PEROXIDE, NITRIC ACID
Stability Condition to Avoid:SPARKS, OPEN FLAME, HOT SURFACES, & OTHER
IGNITION SOURCES
Hazardous Decomposition Products:CO2 & CO

Waste Disposal Methods:DISPOSE AS HAZARDOUS WASTE IN RCRA APPROVED
FACILITY. DON'T FLUSH TO SEWER. DISPOSE OF IN ACCORDANCE W/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.