Supplier Product Identification Physical and Chemical Properties First Aid Measures Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Transport Information Stability and Reactivity
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2,2-Dimethyloxirane(558-30-5)

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

Product Identification

Product Name
2,2-Dimethyloxirane
Synonyms
2,2-Dimethyloxirane
Isobutene oxide
Isobutylene epoxide
CAS
558-30-5
Formula
C4H8O
Molecular Weight
72.11
EINECS
209-193-8
RTECS
TZ3580000
RTECS Class
Mutagen
Beilstein/Gmelin
102408
Beilstein Reference
5-17-01-00058
EC Class
highly flammable, corrosive

Physical and Chemical Properties

Solubility in water
30 g/L (20 C)
Boiling Point
50.5
Vapor Pressure
2355 (20 C)
Density
0.808 g/cm3 (20 C)
Refractive Index
1.38 (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. In case of contact with substance, immediately flush with running water for at least 20 minutes. Wash skin with soap and water.
Eyes
In case of contact with substance, immediately flush with running water for at least 20 minutes.

Hazards Identification

Ingestion
May cause toxic effects.
Inhalation
Vapors may cause dizziness or suffocation. May cause toxic effects.
Skin
Contact with substance may cause severe burns.
Eyes
See Skin.
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
R 11 34 68
EC Safety Phrase
S 16 23 33 36/37/39 45
UN (DOT)
2924

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
-32.5
Autoignition
345
Fire Fighting
Small Fires: Dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Large Fires: Water spray, fog or alcohol-resistant foam.
Upper exp. limit
13.5
Lower exp. limit
1.5
Fire Potential
Flammable/combustible material. May be ignited by heat, sparks or flames.

Accidental Release Measures

Small spills/leaks
Make no contact with the spilled material. Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. 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.

Transport Information

UN Number
2924
HS Code
2910 90 00

Stability and Reactivity

Combustion Products
Fire will produce irritating, corrosive and/or toxic gases.
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