Product Identification

Product Name

Butyl 4,4-bis(tert-butyldioxy)valerate

Synonyms

Butyl 4,4-bis(tert-butylperoxy)pentanoate
Butyl 4,4-di-tert-butylperoxyvalerate
Luperox 230XL
Pentanoic acid, 4,4-bis((1,1-dimethylethyl)dioxy)-, butyl ester
Perhexa V 40
rigonox 17

CAS

995-33-5

Formula

C17H34O6

Molecular Weight

334.45

EINECS

213-626-6

RTECS

YV6191200

Beilstein/Gmelin

2282869

Physical and Chemical Properties

Solubility in water

Insoluble

Melting Point

146

Boiling Point

339

Density

0.9669 g/cm3 (20 C)

Partition Coefficient

4.35

Refractive Index

1.4336 (20 C)

First Aid Measures

Ingestion

Seek medical assistance.

Inhalation

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.

Inhalation

Causes irritation.

Skin

Remove and isolate contaminated clothing and shoes. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes.

Skin

May cause severe injury or burns.

Eyes

See Skin.

Eyes

Immediately flush with running water for at least 20 minutes.

Handling and Storage

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.

Hazards Identification

Ingestion

See Skin.

Inhalation

Causes irritation.

Skin

May cause severe injury or burns.

Eyes

See Skin.

Hazards

May explode from heat 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)

2140

UN (DOT)

2141

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

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

Stability

No data.

Incompatibilities

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

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2140

UN Number

2141

Hazard Class

5.2