3,3-Dimethyloxetane

  • 3,3-Dimethyloxacyclobutane
  • 3,3-Dimethyltrimethylene oxide
Formula
C5H10O
Structure

Registry Numbers and Inventories.
CAS
6921-35-3
11 20/21/22
16 36/37/39 45
RTECS
TZ3150000
RTECS class
Tumorigen; Drug
UN (DOT)
1993
Beilstein/Gmelin
102430
Beilstein Reference
5-17-01-00085

Properties.
Formula
C5H10O
Formula mass
86.15
Boiling point, °C
78 - 80
Vapor pressure, mmHg
155 (25 C)
Density
0.8348 g/mL (20 C)
Solubility in water
Soluble
Refractive index
1.3956 (25 C)
Heat of vaporization
29.7 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Keep away from heat, sparks, and open flame. Store in a cool dry place.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Cover with dry-lime, sand, or soda ash. Place in covered containers using non-sparking tools and transport outdoors. Ventilate area and wash spill site after material pickup is complete.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
-9
Fire fighting
Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam. Water spray. 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.
Hazards
Flammable liquid. Vapor may travel considerable distance to source of ignition and flash back. Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Harmful. Harmful by inhalation, in contact with skin and if swallowed.
   Inhalation
Vapors may cause dizziness or suffocation. May cause irritation or burns.
   Skin
May cause irritation or burns.
   Eyes
See Skin.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.
UN number
1993
Response guide
Hazard class
3
Packing Group
II