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MSDS 
:
 4-Methyl-2-Pentanone, 99.5%, Spectrophoto- Metric Grade
CAS 
:
 108-10-1
SYNONYMS 
:
 Hexone, Isopropylacetone, 4-Methyl-2-Oxopentane, MIBK.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 108-10-1 |Methyl isobutyl ketone | >98.5 | 203-550-1 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: F
Risk Phrases: 11

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Highly flammable.

Potential Health Effects
Eye:
Vapors may cause eye irritation. May cause painful sensitization
to light. Contact produces irritation, tearing, and burning pain.
Skin:
Causes skin irritation. Prolonged and/or repeated contact may cause
irritation and/or dermatitis.
Ingestion:
Causes gastrointestinal irritation with nausea, vomiting and
diarrhea. May cause effects similar to those for inhalation exposure.
Inhalation:
Inhalation of high concentrations may cause central nervous system
effects characterized by nausea, headache, dizziness, unconsciousness
and coma. Causes respiratory tract irritation. Exposure produces
central nervous system depression. May cause liver abnormalities.
May cause visual abnormalities.
Chronic:
Prolonged or repeated skin contact may cause defatting and
dermatitis.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately. Do NOT allow victim to rub or keep eyes closed.
Skin:
Immediately flush skin with plenty of soap and water for at least 15
minutes while removing contaminated clothing and shoes. Get medical
aid if irritation develops or persists. Wash clothing before reuse.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical
aid immediately.
Inhalation:
Remove from exposure to fresh air immediately. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid if cough or other symptoms appear.
Notes to Physician:

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. During a
fire, irritating and highly toxic gases may be generated by thermal
decomposition or combustion. Containers may explode in the heat of a
fire. Vapors may be heavier than air. They can spread along the
ground and collect in low or confined areas. May polymerize
explosively when involved in a fire.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or
alcohol-resistant foam. Water may be ineffective. For large fires,
use water spray, fog or alcohol-resistant foam. Do NOT use straight
streams of water. Cool containers with flooding quantities of water
until well after fire is out.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Avoid runoff into storm sewers and ditches which lead to waterways.
Wear a self contained breathing apparatus and appropriate Personal
protection. (See Exposure Controls, Personal Protection section).
Scoop up with a nonsparking tool, then place into a suitable
container for disposal. Remove all sources of ignition. Absorb spill
using an absorbent, non-combustible material such as earth, sand, or
vermiculite. Do not use combustible materials such as saw dust.
Provide ventilation.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use with adequate ventilation. Ground and bond
containers when transferring material. Use spark-proof tools and
explosion proof equipment. Avoid contact with skin and eyes. Empty
containers retain product residue, (liquid and/or vapor), and can be
dangerous. Avoid ingestion and inhalation. Do not pressurize, cut,
weld, braze, solder, drill, grind, or expose empty containers to
heat, sparks or open flames.
Storage:
Keep away from sources of ignition. Store in a cool, dry,
well-ventilated area away from incompatible substances.
Flammables-area.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne
concentrations below the permissible exposure limits.
Personal Protective Equipment

Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to minimize
contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29CFR
1910.134 or European Standard EN 149. Always use a
NIOSH or European Standard EN 149 approved respirator
when necessary.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Liquid
Appearance: clear, colorless
Odor: Sweet, camphor-like.
pH: Not available.
Vapor Pressure: 15.7 mm Hg @ 20
Viscosity: Not available.
Boiling Point: 117.4 deg C @ 760.00mm Hg
Freezing/Melting Point: -84 deg C
Autoignition Temperature: 460 deg C ( 860.00 deg F)
Flash Point: 14 deg C ( 57.20 deg F)
Explosion Limits, lower: 1.40 vol %
Explosion Limits, upper: 7.50 vol %
Decomposition Temperature:
Solubility in water: 17 g/l (20 c)
Specific Gravity/Density: .8010g/cm3
Molecular Formula: C6H12O
Molecular Weight: 100.16

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat.
Incompatibilities with Other Materials:
Oxidizing agents, potassium tert-butoxide, reducing agents, strong
bases. Substance may form explosive peroxides with air.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: May occur.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 108-10-1: SA9275000
LD50/LC50:
CAS# 108-10-1: Draize test, rabbit, eye: 40 mg Severe; Draize test,
rabbit, eye: 100 uL/24H Moderate; Draize test, rabbit, skin: 500
mg/24H Mild; Inhalation, mouse: LC50 = 23300 mg/m3; Inhalation, rat:
LC50 = 100 gm/m3; Oral, mouse: LD50 = 1900 mg/kg; Oral, rat: LD50 =
2080 mg/kg.
Carcinogenicity:
Methyl isobutyl ketone -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Ecotoxicity:
Fish: Fathead Minnow: LC50 = 505 mg/L; 96 Hr.; Flow through; 25
degrees C, pH 7.5Fish: Goldfish: LC50 = 460 mg/L; 24 Hr.;
UnspecifiedWater flea Daphnia: EC50 = 4280.0 mg/L; 24 Hr.;
UnspecifiedAlgae: EC50 = 400 mg/L; 96 Hr.; UnspecifiedBacteria:
Phytobacterium phosphoreum: EC50 = 79.6 mg/L; 5 minutes; Microtox
testRedwinged blackbird, oral LD50=100mg/kg. Goldfish
LC50=460mg/L/24H.

**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Shipping Name: METHYL ISOBUTYL KETONE
Hazard Class: 3
UN Number: 1245
Packing Group: II
IMO
Shipping Name: METHYL ISOBUTYL KETONE
Hazard Class: 3.2
UN Number: 1245
Packing Group: II
RID/ADR
Shipping Name: METHYL ISOBUTYL KETONE
Dangerous Goods Code: 3(3B)
UN Number: 1245

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: F
Risk Phrases:
R 11 Highly flammable.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 23 Do not inhale gas/fumes/vapour/spray.
S 33 Take precautionary measures against static
discharges.
WGK (Water Danger/Protection)
CAS# 108-10-1: 1
United Kingdom Occupational Exposure Limits
CAS# 108-10-1: OES-United Kingdom, TWA 50 ppm TWA; 208 mg/m3 TWA
CAS# 108-10-1: OES-United Kingdom, STEL 100 ppm STEL; 416 mg/m3 STEL
Canada
CAS# 108-10-1 is listed on Canada's DSL List.
CAS# 108-10-1 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 108-10-1: Not available.
US FEDERAL
TSCA
CAS# 108-10-1 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 5/19/1999 Revision #2 Date: 8/02/2000

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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