Product Identification

Product Name

3(2)-tert-Butyl-4-hydroxyanisole

Synonyms

(1,1-Dimethylethyl)-4-methoxyphenol 2(3)-tert-Butyl-4-hydroxyanisole
Phenol, (1,1-dimethylethyl)-4-methoxy-
tert-Butyl-4-methoxyphenol

CAS

25013-16-5

Formula

C11H16O2

Molecular Weight

180.25

EINECS

246-563-8

RTECS

SL1945000

RTECS Class

Tumorigen; Mutagen; Reproductive Effector

Merck

12,1582

Beilstein/Gmelin

8190955

Physical and Chemical Properties

Appearance

White or slightly yellow, waxy solid. Faint characteristic odor.

Solubility in water

Insoluble

Melting Point

48-55

Boiling Point

264

Density

1.05 g/cm3 (20 C)

Usage

Commercial stabilizers (antioxidants) for food fortification or animal feeds.

Vapor Density

6.2

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

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

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Store in a cool place in the original container and protect from sunlight. Keep container closed when not in use. Store in a tightly closed container.

Handling

Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

Causes respiratory tract irritation.

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.

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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

May cause fetal effects. May cause cancer according to animal studies.

Exposure limit(s)

OSHA: Possible Select carcinogen.

Poison Class

4

Fire Fighting Measures

Flash Point

130

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. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: Use agent most appropriate to extinguish fire.

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Reduce airborne dust and prevent scattering by moistening with water. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

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