tert-Butyl peroxyisobutyrate

  • Propaneperoxoic acid, 2-methyl-, 1,1-dimethylethyl ester
  • tert-Butyl 2-methylpropaneperoxoate
  • Lupersol 8
  • Perbutyl IB
  • Trigonox 41C75
  • Esperox 24M
Formula
C8H16O3
Structure

Registry Numbers and Inventories.
CAS
109-13-7
EC (EINECS/ELINCS)
203-650-5
UN (DOT)
2142, 2562
Beilstein/Gmelin
1704201
Beilstein Reference
4-02-00-00851
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C8H16O3
Formula mass
160.21
Melting point, °C
-46
Boiling point, °C
165
Vapor pressure, mmHg
1.9 (25 C)
Density
0.915 g/cm3 (20 C)
Solubility in water
Insoluble
Refractive index
1.411 (20 C)
Partition coefficient, pKow
2.46
Heat of vaporization
40.2 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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
ELIMINATE all ignition sources and combustible materials. Do not touch spilled material. Stop leak if you can do it without risk. Take up with inert, damp, noncombustible material using clean non-sparking tools and place into loosely covered plastic containers for later disposal. For large spills, contact specialist for clean-up or disposal instructions.
Stability
No data.

Fire.
Flash Point,°C
50 kJ/mol
Fire fighting
The temperature of the substance must be maintained at or below the Control Temperature at all times. Small Fires: Water spray or fog is preferred; if water not available use dry chemical, carbon dioxide or regular foam. Large Fires: Flood fire area with water from a distance. Use water spray or fog; do not use straight streams.
Fire potential
May explode from heat, contamination or loss of temperature control. Particularly sensitive to temperature rises.
Hazards
May ignite combustibles (wood, paper, oil, clothing, etc.). May ignite spontaneously if exposed to air. May be ignited by heat, sparks or flames.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
 
Special
O

Health.
Exposure effects
   Ingestion
See Inhalation.
   Inhalation
May cause severe injury or burns.
   Skin
See Inhalation.
   Eyes
See Inhalation.

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. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
2142, 2562
Response guide
Hazard class
5.2