3,7-Dimethyl-1-octene

  • 2,6-Dimethyl-7-octene
  • 3,7-Dimethyloct-1-ene
  • NSC 157589
Formula
C10H20
Structure
Description
Clear, almost colorless liquid.

Registry Numbers and Inventories.
CAS
4984-01-4
EC (EINECS/ELINCS)
225-635-2
UN (DOT)
3295
Beilstein/Gmelin
1719870
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C10H20
Formula mass
140.27
Melting point, °C
-103
Boiling point, °C
154 - 156
Vapor pressure, mmHg
3.8 (25 C)
Critical temperature
304
Critical pressure
21.96
Density
0.733 g/cm3 (20 C)
Solubility in water
0.32 mg/L (25 C)
Refractive index
1.417 (20 C)
Partition coefficient, pKow
5.19
Heat of vaporization
37.68 kJ/mol

Hazards and Protection.
Storage
Store at 2 - 8 C.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Small spills/leaks
Absorb on sand or vermiculite and place in closed containers for disposal. Wash spill site with soap solution. Flush spill area with copious amounts of water. Ventilate area and wash spill site after material pickup is complete.

Fire.
Flash Point,°C
44
Fire fighting
For small (incipient) fires, use media such as alcohol foam, dry chemical, or carbon dioxide. For large fires, apply water from as far as possible. Use very large quantities (flooding) of water applied as a mist or spray; solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.

Health.
Exposure effects

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. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.
UN number
3295
Response guide
Hazard class
3
Packing Group
III