1,1-Di-(tert-butylperoxy)-3,3,5-trimethylcyclohexane

  • 1,1-Bis(tert-Butyldioxy)-3,3,5-trimethylcyclohexane
  • Di-tert-Butyl 3,3,5-trimethylcyclohexylidene diperoxide
  • Peroxide, (3,3,5-Trimethylcyclohexylidene)bis[(1,1-dimethylethyl)
  • Interox TMCH 40IC
  • Luperox 231-50
  • Trigonox 29
Formula
C17H34O4
Structure
Description
Unstable solid that is commonly blended with calcium carbonate and silica.

Registry Numbers and Inventories.
CAS
6731-36-8
EC (EINECS/ELINCS)
229-782-3
RTECS
SD8600000
RTECS class
Natural Product
UN (DOT)
2146, 2147
Beilstein/Gmelin
5932965
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C17H34O4
Formula mass
302.51
Melting point, °C
302.45
Vapor density (air=1)
10.4
Solubility in water
Insoluble
Partition coefficient, pKow
5.45

Hazards and Protection.
Storage
Regrigerate. Keep in a tightly closed container.
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 protective gloves and clothing and safety goggles.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Keep substance wet using water spray. Stop leak if you can do it without risk. SMALL SPILLS: Take up with inert, damp, noncombustible material using clean non-sparking tools and place into loosely covered plastic containers for later disposal.
Stability
Unstable. Self ignition is possible.
Incompatibilities
Organic compounds can ignite on contact with concentrated peroxides, strongly reduced material such as sulfides, nitrides, and hydrides
Decomposition
Self ignition is possible.

Fire.
Fire fighting
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. Move containers from fire area if you can do it without risk. Do not move cargo or vehicle if cargo has been exposed to heat. Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
Fire potential
May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect.
Hazards
May explode from heat, shock, friction or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect. Containers may explode when heated. Runoff may create fire or explosion hazard.
Combustion products
Emits toxic fumes upon combustion.
 
Special
O

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

First aid
 
   Ingestion
If swallowed, do not induce vomiting. Seek medical assistance.
   Inhalation
Move to fresh air. If breathing becoms difficult, seek madical assistance.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2146, 2147
Response guide
Hazard class
5.2