Product ID:58600 4-METHYL-2-PENTANONE
MSDS Date:08/01/1995
FSC:6810
NIIN:00F045354
MSDS Number: BYLNP

SIGMA CHEMICAL COMPANY

3050 SPRUCE ST
SAINT LOUIS, MO 63178-5000
US

Emergency Phone: 314-771-5765/800-325-3010

Info Phone: 314-771-5765/800-325-3010

Cage: 21076

SIGMA CHEMICAL COMPANY

14508 ST LOUIS, MO 63178 US

Telephone: 314-771-5765

Cage: 21076

HEXONE, METHYL ISOBUTYL KETONE (MIBK), 4-METHYL-2-PENTANONE

CAS: 108-10-1

RTECS: SA9275000

OSHA PEL 410 MG/CUM

ACGIH TLV: 205 MG/CUM

EPA Report Quantity: 5000 LBS

DOT Report Quantity: 5000 LBS

LD50 LC50 Mixture:ORAL LD50(RAT): 2080 MG/KG (SEE SUPP)
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:MAY BE HARMFUL BY INHALATION,
INGESTION/SKIN ABSORPTION. EYES/SKIN: IRRITATION. INHALATION:
IRRITATING TO MUCOUS MEMBRANES & UPPER RESPIRATORY TRACT.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION.

First Aid:EYES/SKIN: IMMEDIATELY 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 ATTENTIO N IN ALL CASES.

Flash Point:56F
Lower Limits:1.2
Upper Limits:8
Extinguishing Media:CO2, DRY CHEMICAL POWDER/APPROPRIATE FOAM. WATER
MAY BE EFFECTIVE FOR COOLING, BUT MAY NOT EFFECT EXTINGUISHMENT.
Fire Fighting Procedures:WEAR SCBA & PROTECTIVE CLOTHING. USE WATER
SPRAY TO COOL FIRE-EXPOSED CONTAINERS. PREVENT CONTACT W/SKIN &
EYES.
Unusual Fire/Explosion Hazard:FLAMMABLE. VAPOR MAY TRAVEL A LONG
DISTANCE TO SOURCES OF IGNITION & FLASH BACK. CONTAINER EXPLOSION
MAY OCCUR UNDER FIRE CONDITIONS. (SEE SUPP)

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 A REA & WASH SITE AFTER MATERIAL PICKUP IS
COMPLETE.

Handling and Storage Precautions:KEEP TIGHTLY CLOSED. KEEP AWAY FROM
HEAT, SPARKS & OPEN FLAME. STORE IN A COOL DRY PLACE. USE
NONSPARKING TOOLS.
Other Precautions:DON'T BREATHE VAPOR. AVOID CONTACT W/EYES, SKIN &
CLOTHING. HARMFUL LIQUID. TAKE PRECAUTIONARY MEASURES AGAINST
STATIC DISCHARGES.

Respiratory Protection:WEAR APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR.
Ventilation:MECHANICAL EXHAUST: REQUIRED
Protective Gloves:CHEMICAL RESISTANT
Eye Protection:SAFETY GOGGLES
Other Protective Equipment:PROTECTIVE CLOTHING, GLOVES & EYE/FACE
PROTECTION.
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE
REUSE. WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
FORMS EXPLOSIVE MIXTURES IN AIR. THIS ORAL LD50 INFORMATION IS FOR
4-METHYL-2-PENTANONE.

Boiling Pt:B.P. Text:242.6-244F
Melt/Freeze Pt:M.P/F.P Text:-112F
Vapor Pres:15
Vapor Density:3.5
Spec Gravity:0.801
Appearance and Odor:COLORLESS LIQUID

Stability Indicator/Materials to Avoid:YES
OXIDIZING AGENTS, REDUCING AGENTS, STRONG BASES.
Stability Condition to Avoid:HEAT, SPARKS, OPEN FLAMES & OTHER SOURCES
OF IGNITION, STATIC DISCHARGE.
Hazardous Decomposition Products:CO, CO2

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. DISPOSE OF 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.