Product ID:METHYL ETHYL KETONE/BUTANONE
MSDS Date:04/30/1991
FSC:6810
NIIN:00-281-6929
MSDS Number: BDTBS

SPECTRUM CHEMICAL MFG CORP.

14422 SOUTH SAN PEDRO STREET
GARDENA, CA 90248-9985
US

Emergency Phone: 310-516-8000/800-424-9300(CHEMTREC)

Info Phone: 310-516-8000

Cage: 63415

SPECTRUM LABORATORY PRODUCTS INC

GARDENA, CA 90248-2027 US

Telephone: 310-516-9843

Cage: 63415

METHYL ETHYL KETONE (2-BUTANONE) (MEK) (SARA 313) (CERCLA)

CAS: 78-93-3

RTECS: EL6475000

Fraction By Weight: 100%

OSHA PEL 200 PPM

ACGIH TLV: 200 PPM/300STEL;9596

EPA Report Quantity: 5000 LBS

DOT Report Quantity: 5000 LBS

LD50 LC50 Mixture:LD50 (ORAL, RAT) IS 2737 MG/KG.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:TARGET ORGANS:EYE, SKIN, CNS, LUNG, GI
TRACT. ACUTE- IRRITANT, NARCOTIC. EYE:CAN CAUSE IRRITATION.
SKIN:DERMATITIS. MAY BE ABSORBED THROUGH SKIN. INHALE:MAY CAUSE CNS
DEPRESSION, RESPIRATORY TRACT IRR ITATION. ORAL:MAY CAUSE COMA,
HYPERVENTILATION, TACHYCARDIA, CNS EFFECTS, GI IRRITATION. CHRONIC-
NEUROTOXIC EFFECTS.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION, TEARING, BLURRED VISION, SKIN
DEFATING, ITCHING, BLISTRING, DERMATITIS, HEADACHE, DIZZINESS,
WEAKNESS, FATIGUE, NAUSEA, VOMITING, DIARRHEA, ABDOMINAL SPASMS,
PAIN
Medical Cond Aggravated by Exposure:PERSONS WITH PRE-EXISTING DISEASES
INVOLVING THE EYES, SKIN, LUNGS OR CNS MAY BE AT INCREASED RISK
FROM EXPOSURE.

First Aid:CALL PHYSICIAN IF SYMPTOMS PERSIST. EYE:IMMEDIATELY FLUSH
WITH WATER FOR 15 MINUTES. HOLD EYELIDS OPEN. SKIN:WASH WITH SOAP &
WATER. INHALED:REMOVE TO FRESH AIR. PROVIDE CPR/OXYGEN IF NEEDED.
ORAL:IF CONSCIOUS, INDUCE VOMITING USING IPECACSYRUP & WATER. CALL
A PHYSICIAN/POISON CONTROL CENTER IMMEDIATELY. NEVER GIVE FLUID OR
INDUCE VOMITING IF PATIENT IS UNCONSCIOUS OR HAS CONVULSIONS.

Flash Point Method:CC
Flash Point:16.0F,-8.9C
Autoignition Temp:Autoignition Temp Text:759F
Lower Limits:1.4%
Upper Limits:11.4%
Extinguishing Media:USE WATER SPRAY, CARBON DIOXIDE (CO2), ALCOHOL FOAM
OR DRY CHEMICAL. USE WATER SPRAY TO COOL FIRE EXPOSED CONTAINERS.
Fire Fighting Procedures:WEAR PROTECTIVE CLOTHING AND NIOSH-APPROVED
SELF-CONTAINED BREATHING APPARATUS. SEE 1990 EMERGENCY RESPONSE
GUIDEBOOK, DOT P 5800.5.
Unusual Fire/Explosion Hazard:VAPOR IS HEAVIER THAN AIR AND CAN TRAVEL
CONSIDERABLE DISTANCE TO A SOURCE OF IGNITION AND FLASH BACK.
CONTAINERS MAY RUPTURE DUE TO VAPOR PRESSURE BUILDUP.

Spill Release Procedures:WEAR PROTECTIVE EQUIPMENT. ELIMINATE SOURCES
OF IGNITION. VENTILATE AREA. CONTAIN SPILL. PICK UP SPILL WITH
NON-FLAMMABLE ABSORBENT MATERIAL SUCH AS SAND. PLACE IN CONTAINER
FOR DISPOSAL. PREVENT LIQU ID FROM ENTERING SEWERS, WATERWAYS OR
LOW AREAS.
Neutralizing Agent:NOT RELEVANT

Handling and Storage Precautions:STORE IN COOL, DRY, WELL VENTILATED
AREA AWAY FROM SOURCES OF IGNITION & INCOMPATIBLE MATERIALS. BOND
AND GROUND CONTAINERS WHEN TRANSFERRING LIQUID.
Other Precautions:"EMPTY" CONTAINERS MAY RETAIN RESIDUE AND CAN BE
DANGEROUS. DO NOT PRESSURIZE, CUT, WELD, BRAZE, SOLDER, DRILL,
GRIND OR EXPOSE SUCH CONTAINERS TO HEAT, FLAME, SPARKS. THEY MAY
EXPLODE AND CAUSE INJUR Y/DEATH. KEEP OUT OF REACH OF CHILDREN.

Respiratory Protection:IF ENGINEERING CONTROLS ARE INADEQUATE TO
CONTROL VAPOR CONCENTRATIONS TO AN ACCEPTABLE LEVEL, A
NIOSH-APPROVED ORGANIC VAPOR RESPIRATOR SHOULD BE WORN.
Ventilation:MECHANICAL (GENERAL AND/OR LOCAL EXHAUST, EXPLOSION-PROOF)
VENTILATION TO MAINTAIN EXPOSURE BELOW TLV(S).
Protective Gloves:BUTYL OR PVA
Eye Protection:SAFETY GLASSES - CHEMICAL SPLASH GOGGLES
Other Protective Equipment:EYE WASH STATION AND SAFETY SHOWER.
INDUSTRIAL-TYPE WORK CLOTHING AND APRON AS REQUIRED.
Work Hygienic Practices:OBSERVE GOOD INDUSTRIAL HYGIENE PRACTICES AND
RECOMMENDED PROCEDURES. WASH THOROUGHLY BEFORE EATING,
DRINKING/SMOKING.
Supplemental Safety and Health
AVOID PROLONGED OR REPEATED EXPOSURE. DO NOT GET ON SKIN OR IN EYES. DO
NOT BREATHE VAPORS. DO NOT INGEST. READ PRECAUTIONS ON LABEL BEFORE
USE.

HCC:F3
NRC/State Lic Num:NOT RELEVANT
Boiling Pt:B.P. Text:176F,80C
Melt/Freeze Pt:M.P/F.P Text:-123F,-86C
Decomp Temp:Decomp Text:NOT KNOWN
Vapor Pres:100 @ 77 F
Vapor Density:2.5
Spec Gravity:0.8054
Viscosity:0.40 CPS @77F
Evaporation Rate & Reference:2.70 (ETHER=1)
Solubility in Water:27.5%
Appearance and Odor:COLORLESS LIQUID WITH ACETONE-LIKE ODOR
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS, CHLOROFORM, CHLOROSULFONIC ACID, ISOPROPANOL,
PLASTICS, RADIOACTIVE MATERIALS, RESINS, RUBBER
Stability Condition to Avoid:HIGH TEMPERATURES, SPARKS, AND OPEN FLAMES
Hazardous Decomposition Products:CARBON MONOXIDE, CARBON DIOXIDE,
FORMALDEHYDE, METHANE, METHANOL, PERACETIC ACID

Waste Disposal Methods:DISPOSAL SHOULD BE MADE IN ACCORDANCE WITH ALL
APPLICABLE FEDERAL, STATE AND LOCAL ENVIRONMENTAL REGULATIONS.
RECOMMENDED PROCEDURE IS BY INCINERATION. EPA HAZARDOUS WASTE
NUMBER: D035 (40 CFR PART 26 2).

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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.