Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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3-Methyl-2-butenoic acid ethyl ester(638-10-8)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
3-Methyl-2-butenoic acid ethyl ester
Synonyms
Ethyl 3,3-dimethylacrylate
Ethyl 3-methyl-2-butenoate
Ethyl 3-methylcrotonate
Ethyl dimethylacrylate
Ethyl isobutenoate
Ethyl isopropylideneacetate
CAS
638-10-8
Formula
C7H12O2
Molecular Weight
128.19
EINECS
211-319-1
RTECS
GQ5750000
RTECS Class
Other
Beilstein/Gmelin
1744854
Beilstein Reference
4-02-00-01556

Physical and Chemical Properties

Solubility in water
Insoluble
Boiling Point
152 - 153
Vapor Pressure
3.3 (25 C)
Density
0.922 g/cm3 (21 C)
Heat Of Vaporization
39.0 kJ/mol
Usage
Food additive for flavor.
Refractive Index
1.4359 (20 C)

First Aid Measures

Ingestion
Seek medical assistance.
Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
Skin
Remove and isolate contaminated clothing and shoes. Wash skin with soap and water. Flush with running water for at least 20 minutes
Eyes
Flush with running water for at least 20 minutes.

Handling and Storage

Storage
Keep tightly closed. Keep away from heat, sparks, and open flame. Store in a cool dry place.

Hazards Identification

Inhalation
May cause irritation or burns.
Skin
See Inhalation.
Eyes
See Inhalation.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
EC Risk Phrase
10
EC Safety Phrase
16 29 33
UN (DOT)
3272

Exposure Controls/Personal Protection

Personal Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).

Fire Fighting Measures

Flash Point
34
Fire Fighting
Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire Potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.

Accidental Release Measures

Small spills/leaks
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.

Stability and Reactivity

Incompatibilities
Acids, Bases, Oxidizing agents, Reducing agents.
Decomposition
Carbon monoxide, Carbon dioxide.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
3272
Hazard Class
3
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