Product Identification

Product Name

2-(tert-Butyl)-4,6-dimethylphenol

Synonyms

2,4-Dimethyl-6-tert-butylphenol
2-Methyl-6-tert-butyl-p-cresol
6-(1,1-Dimethylethyl)-2,4-dimethylphenol
6-tert-Butyl-2,4-xylenol
Phenol, 2-(1,1-dimethylethyl)-4,6-dimethyl-
Topanol A

CAS

1879-09-0

Formula

C12H18O

Molecular Weight

178.3

EINECS

217-533-1

RTECS

ZE6825000

RTECS Class

Other

Beilstein/Gmelin

2935417

Physical and Chemical Properties

Solubility in water

Insoluble

Melting Point

27

Boiling Point

249

Vapor Pressure

0.015 (25 C)

Density

0.917 g/cm3 (20 C)

pKa/pKb

12.00 (pKa)

Partition Coefficient

4.09

Heat Of Vaporization

50.6 kJ/mol

Usage

Antioxidant.

Refractive Index

1.6186 (20 C)

First Aid Measures

Ingestion

Seek medical assistance.

Inhalation

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.

Skin

Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected 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 Inhalation.

Inhalation

TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.

Skin

Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.

Eyes

See Inhalation.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

UN (DOT)

2430

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

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

Poison Class

2

Fire Fighting Measures

Flash Point

111

Fire Fighting

Use water in flooding quantities as fog. Use foam, dry chemical, or carbon dioxide. Apply water from as far a distance as possible. Keep run-off water out of sewers and water sources.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard.

Stability and Reactivity

Stability

No data.

Incompatibilities

Reacts as weak organic acids Incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides.

Combustion Products

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

Transport Information

UN Number

2430

Hazard Class

8

Packing Group

I; II; III