Product Identification

Product Name

Di-tert-butyl 3,3,5-trimethylcyclohexylidene diperoxide

Synonyms

1,1-Bis(tert-Butyldioxy)-3,3,5-trimethylcyclohexane
Di-tert-Butyl 3,3,5-trimethylcyclohexylidene diperoxide
Interox TMCH 40IC
Luperox 231-50
Peroxide, (3,3,5-Trimethylcyclohexylidene)bis[(1,1-dimethylethyl)
Trigonox 29

CAS

6731-36-8

Formula

C17H34O4

Molecular Weight

302.51

EINECS

229-782-3

RTECS

SD8600000

RTECS Class

Natural Product

Beilstein/Gmelin

5932965

Physical and Chemical Properties

Appearance

Unstable solid that is commonly blended with calcium carbonate and silica.

Solubility in water

Insoluble

Melting Point

148

Melting Point

302.45

Boiling Point

307

Partition Coefficient

5.45

Vapor Density

10.4

First Aid Measures

Ingestion

If swallowed, do not induce vomiting. Seek medical assistance.

Inhalation

Causes irritation.

Inhalation

Move to fresh air. If breathing becoms difficult, seek madical assistance.

Skin

May cause severe injury or burns.

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

See Skin.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

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.

Hazards Identification

Ingestion

See Skin.

Inhalation

Causes irritation.

Skin

May cause severe injury or burns.

Eyes

See Skin.

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.

UN (DOT)

2145

UN (DOT)

2146, 2147

Exposure Controls/Personal Protection

Personal 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.

Fire Fighting Measures

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.

Accidental Release Measures

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 and Reactivity

Incompatibilities

Organic compounds can ignite on contact with concentrated peroxides, strongly reduced material such as sulfides, nitrides, and hydrides

Stability

Unstable. Self ignition is possible.

Decomposition

Self ignition is possible.

Combustion Products

Emits toxic fumes upon combustion.

Transport Information

UN Number

2145

UN Number

2146, 2147

Hazard Class

5.2