Product Identification

Product Name

3,5-Di-tert-butylcatechol

Synonyms

1,2-Benzenediol, 3,5-bis(1,1-dimethylethyl)-
3,5-Ditert-butylbenzene-1,2-diol

CAS

1020-31-1

Formula

C14H22O2

Molecular Weight

222.33

EINECS

213-816-9

Beilstein/Gmelin

1370212

Beilstein Reference

4-06-00-06073

EC Class

irritant

Physical and Chemical Properties

Appearance

Beige solid.

Solubility in water

Insoluble

Melting Point

96 - 97

Boiling Point

310

Vapor Pressure

0.0003 (25 C)

pKa/pKb

10.03 (pKa)

Partition Coefficient

4.26

Heat Of Vaporization

57.2 kJ/mol

Heat Of Combustion

-8083 kJ/mol

Refractive Index

1.4 (20 C)

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.

Inhalation

Remove from exposure to fresh air immediately. 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.

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

Store in a cool, dry place. Keep container closed when not in use.

Handling

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

Hazards Identification

Ingestion

The toxicological properties of this substance have not been fully investigated.

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing 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.

Fire Fighting Measures

Flash Point

137

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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.

Stability and Reactivity

Incompatibilities

Acid chlorides - acid anhydrides - oxidizing agents - brass - copper, copper alloys.

Stability

Stable under normal temperatures and pressures.

Decomposition

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

Transport Information

HS Code

2907 29 00