Product Identification

Product Name

2,4-Xylenol

Synonyms

2,4-Dimethylphenol
m-Xylenol

CAS

105-67-9

Formula

C8H10O

Molecular Weight

122.17

EINECS

203-321-6

RTECS

ZE5600000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Drug

Merck

12,10215

Beilstein/Gmelin

636244

Beilstein Reference

4-06-00-03126

EC Index Number

604-006-00-X

EC Class

Toxic; Corrosive; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Colorless crystals or clear, dark amber liquid.

Solubility in water

5 g/L

Melting Point

25

Boiling Point

210.9

Vapor Pressure

.1

Density

1.0362 g/cm3 (0 C)

pKa/pKb

10.60 (pKa)

Partition Coefficient

2.3

Heat Of Vaporization

64.96 kj/mole

Usage

Manufacture of pharmaceuticals, plastics, insecticides, fungicides, rubber chem, wetting agents, dyestuffs.

Odor threshold

0.001 mg/m3

Refractive Index

1.542 (14 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. 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 if cough or other symptoms appear. 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 immediately.

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not store in metal containers.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Keep away from strong bases and metals.

Hazards Identification

Inhalation

May cause respiratory tract irritation.

Skin

Causes skin irritation. May be harmful if absorbed through the skin.

Eyes

Causes eye irritation.

Ingestion

May cause irritation of the digestive tract. May cause kidney damage. A case of fatal xylenol ingestion by a long stay mental hospital patient is described. Clinical course was similar to that observed in other phenolic poisonings with active bowel sounds, nausea, vomiting, severe metabolic acidosis, hypotension, and cardiac and renal failure.

Hazards

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

EC Risk Phrase

R 24/25 34 51/53

EC Safety Phrase

S 26 36/37/39 45 61

UN (DOT)

2261

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

Chronic ingestion may cause effects similar to those of acute ingestion. May cause kidney damage.

Fire Fighting Measures

Flash Point

80-95

Autoignition

599

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. Material will burn in a fire. Use water spray to keep fire-exposed containers cool. May polymerize explosively when involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.

Upper exp. limit

6.4

Lower exp. limit

1.1

Fire Potential

This chemical is probably combustible.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

9

Incompatibilities

Bases - acid chlorides - acid anhydrides - oxidizing agents - corrodes 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

2261

Hazard Class

6.1

Packing Group

II

HS Code

2907 14 00