Octafluorobut-2-ene

  • Perfluoro-2-butene
  • 1,1,1,2,3,4,4,4-octafluorobut-2-ene
  • 2-Butene, 1,1,1,2,3,4,4,4-Octafluoro
Formula
C4F8
Structure
Description
Colorless gas.
Uses
Used to make other chemicals.

Registry Numbers and Inventories.
CAS
360-89-4
EC (EINECS/ELINCS)
206-640-9
RTECS
EM8980000
RTECS class
Mutagen
UN (DOT)
2422
Beilstein/Gmelin
1783460
Beilstein Reference
4-01-00-00783
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
C4F8
Formula mass
200.04
Melting point, °C
-162
Boiling point, °C
8
Vapor pressure, mmHg
1520 (25 C)
Vapor density (air=1)
7.0
Critical temperature
94
Critical pressure
28.5
Density
1.5297 g/cm3 (20 C)
Solubility in water
Insoluble
Partition coefficient, pKow
3.03
Heat of vaporization
24.6 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry location with adequate ventilation. Keep container tightly closed.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Stability
Oxides of carbon and HF.
Incompatibilities
Incompatible with strong oxidizing and reducing agents Incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides.
Decomposition
Stable at normal temperatures and pressure.

Fire.
Flash Point,°C
-33
Upper exp. limit, %
18.7
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Do not use water on material itself. Use water spray to knock-down vapors.
Fire potential
May burn but does not ignite readily.
Hazards
Containers may explode when heated. Ruptured cylinders may rocket.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
   Ingestion
Unlikely to occur.
   Inhalation
Vapors may cause dizziness or asphyxiation without warning.
   Skin
Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
   Eyes
See Skin.

First aid
 
   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 liquefied gas, thaw frosted parts with lukewarm water.
   Eyes
Flush eyes with plenty of water for at least 15 minutes. Then get immediate medical attention.

Transport.
UN number
2422
Response guide
Hazard class
2.2
36. Halogenated hydrocarbons
Std. Transport #
4904550