Product Identification

Product Name

4-(1,1-Dimethylethyl)phenol

Synonyms

4-(1,1-Dimethylethyl)phenol
4-tert-Butylphenol
Butylphen

CAS

98-54-4

Formula

C10H14O

Molecular Weight

150.22

EINECS

202-679-0

RTECS

SJ8925000

RTECS Class

Tumorigen; Primary Irritant

Merck

13,1584

Beilstein/Gmelin

1817334

Beilstein Reference

4-06-00-03296

EC Class

irritant, sensitizing

Physical and Chemical Properties

Appearance

Crystals or practically white flakes. Has a disinfectant-like odor.

Solubility in water

Insoluble

Melting Point

95 - 98

Boiling Point

237

Vapor Pressure

0.0022 (20 C)

Density

1.017 g/cm3 (20 C)

pKa/pKb

10.23(at 25℃) (pKa)

Partition Coefficient

3.42

Heat Of Vaporization

18.72 kJ/mol

Heat Of Combustion

-5659 kJ/mol

Usage

Intermediate in the production of varnish and lacquer resins.

Refractive Index

1.4787 (114 C)

First Aid Measures

Ingestion

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

Inhalation

Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.

Skin

Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

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 tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Do not allow contact with water. Keep from contact with moist air and steam.

Hazards Identification

Inhalation

Causes respiratory tract irritation. In rare instances, exposure may cause sensitization, resulting in inflammation of the mucous membranes and in eczematous eruptions.

Skin

Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.

Eyes

Causes severe eye irritation.

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea.

Hazards

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

EC Risk Phrase

R 34 51/53

EC Safety Phrase

S 26 36/37/39 45 61

UN (DOT)

2229

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

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure Effects

Repeated or prolonged exposure may cause allergic reactions in sensitive individuals.

Poison Class

4

Fire Fighting Measures

Flash Point

115

Autoignition

510

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. Extinguishing media: Use agent most appropriate to extinguish fire. Do NOT get water inside containers. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Upper exp. limit

5.5

Lower exp. limit

.8

Fire Potential

This material is combustible.

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. Avoid generating dusty conditions. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Oxidizing agents.

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

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

2229

Hazard Class

6.1

Packing Group

III

HS Code

2907 19 00