Product Identification

Product Name

2,6-Bis(1,1-Dimethylethyl)phenol

Synonyms

2,6-Di-(tert-butyl)phenol

CAS

128-39-2

Formula

C14H22O

Molecular Weight

206.33

EINECS

204-884-0

RTECS

SK8265000

RTECS Class

Other

Beilstein/Gmelin

3835990

Beilstein Reference

4-14-00-02623

EC Class

harmful, dangerous for the environment

Physical and Chemical Properties

Appearance

Odorless colorless to light yellow solid or liquid.

Solubility in water

Insoluble

Melting Point

34 - 37

Boiling Point

251

Vapor Pressure

<0.1

Density

0.914 g/cm3 (20 C)

pKa/pKb

12.15 (pKa)

Partition Coefficient

4.92

Heat Of Vaporization

50.8 kJ/mol

Heat Of Combustion

-8300 kJ/mol

Usage

Intermediate, antioxidant.

Refractive Index

1.5001 (20 C)

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Get medical aid if irritation or symptoms occur.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.

Eyes

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

Handling and Storage

Storage

Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

Handling

Wash thoroughly after handling. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Wash clothing before reuse.

Hazards Identification

Ingestion

May cause liver damage. Causes gastrointestinal tract irritation.

Inhalation

Causes respiratory tract irritation.

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 51/53

EC Safety Phrase

S 24/25 61

UN (DOT)

2811

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Poison Class

-

Fire Fighting Measures

Flash Point

118

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Bases - acid chlorides - acid anhydrides - oxidizing agents - steel - brass - copper, copper alloys.

Stability

Stable under normal temperatures and pressures.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

2811

Hazard Class

6.1

Packing Group

I; II; III

HS Code

2907 19 00