Product Identification

Product Name

4-Chloro-3,5-dimethylphenol

Synonyms

4-Chloro-3,5-dimethylphenol
4-Chloro-3,5-xylenol
Chloroxylenol

CAS

88-04-0

Formula

C8H9ClO

Molecular Weight

156.61000000000001

EINECS

201-793-8

RTECS

ZE6850000

RTECS Class

Mutagen; Reproductive Effector; Human Data; Primary Irritant

Merck

13,2194

Beilstein/Gmelin

1862539

Beilstein Reference

4-06-00-03152

EC Index Number

604-038-00-4

EC Class

Harmful; Irritant; Sensitising

Physical and Chemical Properties

Appearance

White to cream colored crystals.

Solubility in water

0.3 g/L

Melting Point

114 - 116

Boiling Point

246

Vapor Pressure

0.02 (25 C)

Density

1.364 g/cm3

pKa/pKb

9.76 (pKa)

Partition Coefficient

3.35

Heat Of Vaporization

50.3 kJ/mol

Usage

Antiseptic and germicide.

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 not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

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

Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

Causes irritation of the mucous membrane and upper respiratory tract.

Skin

Causes skin irritation. May cause an allergic reaction in certain individuals.

Eyes

Causes moderate eye irritation.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea.

EC Risk Phrase

R 22 36/38 43

EC Safety Phrase

S 24 37

UN (DOT)

3335

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 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

Animal studies have reported that fetal effects/abnormalities may occur when maternal toxicity is seen. Laboratory experiments have resulted in mutagenic effects.

Poison Class

3

Fire Fighting Measures

Flash Point

132

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. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

3

Stability

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

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Hydrogen chloride, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Transport Information

UN Number

3335

HS Code

2908 10 00