Product Identification

Product Name

1-Chloro-2-methylbenzene

Synonyms

1-Chloro-2-Methylbenzene
2,4-Dicyano-3-methylpentanediamide
2-Chloro-1-Methylbenzene
alpha,gamma-Dicyano-beta-methyl-glutaramide
o-Chlorotoluene

CAS

95-49-8

CAS

5447-66-5

Formula

C7H7Cl

Formula

C8H10N4O2

Molecular Weight

126.59

Molecular Weight

194.19

EINECS

202-424-3

EINECS

226-665-9

RTECS

MA3000000

RTECS

XS9000000

RTECS Class

Other

RTECS Class

Primary Irritant

Merck

13,2190

Beilstein/Gmelin

1712402

Beilstein/Gmelin

1904175

Beilstein Reference

3-02-00-02080

Beilstein Reference

4-05-00-00805

EC Index Number

602-040-00-X

EC Class

Harmful; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Colorless liquid.

Appearance

White powder.

Solubility in water

90 mg/L

Melting Point

161

Melting Point

-36

Boiling Point

159

Vapor Pressure

3

Density

1.0825 g/cm3

Partition Coefficient

3.42

Heat Of Vaporization

43.10 kJ/mol

Heat Of Combustion

-3747 kJ/mol

Usage

Solvent, dyestuff intermediate, in organic syntheses.

Vapor Density

4.38

Saturation Concentration

4.7 x 10(3) ppm (0.47%) at 25 C (calculated)

Refractive Index

1.5352

First Aid Measures

Ingestion

Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

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

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Inhalation

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

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. 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

May cause skin irritation.

Skin

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

Eyes

May cause eye irritation.

Eyes

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

Eyes

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 away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.

Storage

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

Handling

Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

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.

Hazards Identification

Ingestion

May cause digestive tract disturbances.

Ingestion

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.

Inhalation

Causes severe respiratory tract irritation. Vapors may cause dizziness or suffocation.

Skin

Causes severe skin irritation.

Eyes

Causes severe eye irritation.

Hazards

Contact with metals may evolve flammable hydrogen gas.

Hazards

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.

EC Risk Phrase

R 20 51/53

EC Safety Phrase

S 24/25 61

UN (DOT)

2238

UN (DOT)

2811

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.

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 limit(s)

NIOSH REL: TWA 50 ppm (250 mg/m3) ST 75 ppm (375 mg/m3)

Poison Class

3 (Strong toxins)

Fire Fighting Measures

Flash Point

48

Autoignition

> 600

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.

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.

Upper exp. limit

12.6

Lower exp. limit

1

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Fire Potential

Slight risk when exposed to heat or flame.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. A vapor suppressing foam may be used to reduce vapors.

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

2

Incompatibilities

Oxidizing agents, reducing agents, acids, alkalis.

Stability

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

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong acids, strong bases, strong oxidizing agents, strong reducing agents.

Decomposition

Carbon monoxide, oxides of nitrogen, irritating and toxic fumes and gases, carbon dioxide.

Decomposition

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

Combustion Products

May contain toxic chloride fumes.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2238

UN Number

2811

Hazard Class

3

Hazard Class

6.1

Packing Group

I; II; III

Packing Group

III

HS Code

2903 69 90