SIGMA-ALDRICH
MATERIAL SAFETY DATA SHEET
Date Printed: 03/14/2005
Date Updated: 04/11/2004
Version 1.2
Section 1 - Product and Company Information
Product Name 2-METHYL-2-BUTENE, TECH., 90%
Product Number 379263
Brand ALDRICH
Company Sigma-Aldrich
Street Address 3050 Spruce Street
City, State, Zip, Country SAINT LOUIS MO 63103 US
Technical Phone: 314 771 5765
Emergency Phone: 414 273 3850 Ext. 5996
Fax: 800 325 5052
Section 2 - Composition/Information on Ingredient
Substance Name CAS # SARA 313
2-METHYL-2-BUTENE 513-35-9 No
Formula C5H10
Section 3 - Hazards Identification
EMERGENCY OVERVIEW
Flammable (USA) Extremely Flammable (EU). Irritant.
Irritating to eyes, respiratory system and skin.
For additional information on toxicity, please refer to Section 11.
Section 4 - First Aid Measures
ORAL EXPOSURE
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.
INHALATION EXPOSURE
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
DERMAL EXPOSURE
In case of contact, immediately wash skin with soap and copious
amounts of water.
EYE EXPOSURE
Contamination of the eyes should be treated by immediate and
prolonged irrigation with copious amounts of water. Assure
adequate flushing of the eyes by separating the eyelids with
fingers.
INFORMATION FOR PHYSICIAN
Contamination of the eyes should be treated by immediate and
prolonged irrigation with copious amounts of water.
Section 5 - Fire Fighting Measures
EXPLOSION HAZARDS
Vapor may travel considerable distance to source of ignition and
flash back. Container explosion may occur under fire conditions.
Forms explosive mixtures in air.
FLASH POINT
-4 掳F -20 掳C Method: closed cup
EXPLOSION LIMITS
Lower: 1.6 % Upper: 8.7 %
AUTOIGNITION TEMP
N/A
FLAMMABILITY
N/A
EXTINGUISHING MEDIA
Suitable: Carbon dioxide, dry chemical powder, or appropriate
foam.
Unsuitable: Water may be effective for cooling, but may not
effect extinguishment.
FIREFIGHTING
Protective Equipment: Wear self-contained breathing apparatus
and protective clothing to prevent contact with skin and eyes.
Specific Hazard(s): Flammable liquid. Emits toxic fumes under
fire conditions. Vapor may travel considerable distance to
source of ignition and flash back.
Specific Method(s) of Fire Fighting: Use water spray to cool
fire-exposed containers.
EXPOSURE HAZARD(S)
Material: Irritant.
Section 6 - Accidental Release Measures
PROCEDURE TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area. Shut off all sources of ignition.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
Cover with an activated carbon adsorbent, take up and place in
closed containers. Transport outdoors. Ventilate area and wash
spill site after material pickup is complete.
Section 7 - Handling and Storage
HANDLING
User Exposure: Do not breathe vapor. Avoid contact with eyes,
skin, and clothing. Avoid prolonged or repeated exposure.
STORAGE
Suitable: Keep tightly closed. Keep away from heat, sparks, and
open flame.
SPECIAL REQUIREMENTS
ALDRICH - 379263 www.sigma-aldrich.com Page 2
May develop pressure. Open carefully.
Section 8 - Exposure Controls / PPE
ENGINEERING CONTROLS
Safety shower and eye bath. Mechanical exhaust required.
PERSONAL PROTECTIVE EQUIPMENT
Other: Wear appropriate government approved respirator,
chemical-resistant gloves, safety goggles, other protective
clothing.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Remove and wash contaminated
clothing promptly.
Section 9 - Physical/Chemical Properties
Appearance Color: Colorless
Form: Clear liquid
Property Value At Temperature or Pressure
Molecular Weight 70.14 AMU
pH N/A
BP/BP Range 37 - 38 掳C
MP/MP Range -134 掳C
Freezing Point N/A
Vapor Pressure 724 mmHg 37.8 掳C
Vapor Density 2.4 g/l
Saturated Vapor Conc. N/A
SG/Density 0.663 g/cm3
Bulk Density N/A
Odor Threshold N/A
Volatile% N/A
VOC Content N/A
Water Content N/A
Solvent Content N/A
Evaporation Rate N/A
Viscosity 0.22 Pas 20 掳C
Surface Tension N/A
Partition Coefficient N/A
Decomposition Temp. N/A
Flash Point -4 掳F -20 掳C Method: closed cup
Explosion Limits Lower: 1.6 %
Upper: 8.7 %
Flammability N/A
Autoignition Temp N/A
Refractive Index 1.387
Optical Rotation N/A
Miscellaneous Data N/A
Solubility Solubility in Water:Insoluble.
Other Solvents: ETHANOL, ETHYL ETHER,
BENZENE
N/A = not available
Section 10 - Stability and Reactivity
STABILITY
Materials to Avoid: Acids, Oxidizing agents.
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HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide.
Section 11 - Toxicological Information
ROUTE OF EXPOSURE
Skin Contact: Causes skin irritation.
Multiple Routes: May be harmful by inhalation, ingestion, or
skin absorption. Vapor or mist is irritating to the eyes, mucous
membranes, and upper respiratory tract.
SIGNS AND SYMPTOMS OF EXPOSURE
Symptoms of exposure may include burning sensation, coughing,
wheezing, laryngitis, shortness of breath, headache, nausea, and
vomiting. To the best of our knowledge, the chemical, physical,
and toxicological properties have not been thoroughly
investigated.
TOXICITY DATA
Oral
Rat
*
LD50
Section 12 - Ecological Information
No data available.
Section 13 - Disposal Considerations
APPROPRIATE METHOD OF DISPOSAL OF SUBSTANCE OR PREPARATION
Burn in a chemical incinerator equipped with an afterburner and
scrubber but exert extra care in igniting as this material is
highly flammable. Observe all federal, state, and local
environmental regulations.
Section 14 - Transport Information
DOT
Proper Shipping Name: Flammable liquids, n.o.s.
UN#: 1993
Class: 3
Packing Group: Packing Group II
Hazard Label: Flammable liquid
PIH: Not PIH
IATA
Proper Shipping Name: 2-Methyl-2-butene
IATA UN Number: 2460
Hazard Class: 3
Packing Group: II
Section 15 - Regulatory Information
EU ADDITIONAL CLASSIFICATION
Symbol of Danger: F Xn
Indication of Danger: Highly Flammable. Harmful.
R: 11 22
Risk Statements: Highly flammable. Harmful if swallowed.
S: 7 9 16 29 33
Safety Statements: Keep container tightly closed. Keep container
in a well-ventilated place. Keep away from sources of ignition -
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no smoking. Do not empty into drains. Take precautionary
measures against static discharges.
US CLASSIFICATION AND LABEL TEXT
Indication of Danger: Flammable (USA) Extremely Flammable (EU).
Irritant.
Risk Statements: Irritating to eyes, respiratory system and skin.
Safety Statements: Keep away from sources of ignition - no
smoking. In case of contact with eyes, rinse immediately with
plenty of water and seek medical advice. Take precautionary
measures against static discharges. Wear suitable gloves and
eye/face protection.
UNITED STATES REGULATORY INFORMATION
SARA LISTED: No
CANADA REGULATORY INFORMATION
WHMIS Classification: This product has been classified in
accordance with the hazard criteria of the CPR, and the MSDS
contains all the information required by the CPR.
DSL: Yes
NDSL: No
Section 16 - Other Information
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
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