Product Identification

Product Name

tert-Butyl peroxyisobutyrate

Synonyms

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

CAS

109-13-7

Formula

C8H16O3

Molecular Weight

160.21

EINECS

203-650-5

Beilstein/Gmelin

1704201

Beilstein Reference

4-02-00-00851

Physical and Chemical Properties

Solubility in water

Insoluble

Melting Point

-46

Boiling Point

165

Vapor Pressure

1.9 (25 C)

Density

0.915 g/cm3 (20 C)

Partition Coefficient

2.46

Heat Of Vaporization

40.2 kJ/mol

Refractive Index

1.411 (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.

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.

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 Inhalation.

Inhalation

May cause severe injury or burns.

Skin

See Inhalation.

Eyes

See Inhalation.

Hazards

May ignite combustibles (wood, paper, oil, clothing, etc.). May ignite spontaneously if exposed to air. May be ignited by heat, sparks or flames.

UN (DOT)

2142, 2562

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

Flash Point

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.

Accidental Release Measures

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 and Reactivity

Stability

No data.

Combustion Products

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

Transport Information

UN Number

2142, 2562

Hazard Class

5.2