English Safety Data Sheet Database 中文版 MSDS

3-chlorotoluene

CAS No. 108-41-8 | PubChem CID 7931
Section 1. Identification
Chemical Name3-chlorotoluene CAS No.108-41-8
Synonymsm-chlorotoluene Chinese Name3-氯甲苯
Molecular FormulaC7HC1 Molecular Weight126.583
UN No.2238 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word WARNING
Pictograms GHS02 · Flammable GHS07 · Irritant GHS09 · Environmental Hazard
Hazard Statements H332H411H226H302H315
Precautionary Statements P261P271P273P304+P340P317P391P501P210P233P240P241P242P243P264P270P280P301+P317P302+P352P303+P361+P353P321P330P332+P317P362+P364P370+P378P403+P235

Section 2. Hazards Identification

H332: Harmful if inhaled [Warning Acute toxicity, inhalation]

H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P261, P271, P273, P304+P340, P317, P391, and P501 (click each P-code to see the statement)

H226 (95.5%): Flammable liquid and vapor [Warning Flammable liquids]

H302+H332 (42%): Harmful if swallowed or if inhaled [Warning Acute toxicity, oral; acute toxicity, inhalation]

H302 (44.3%): Harmful if swallowed [Warning Acute toxicity, oral]

H315 (44.3%): Causes skin irritation [Warning Skin corrosion/irritation]

H332 (100%): Harmful if inhaled [Warning Acute toxicity, inhalation]

H411 (100%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P273, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P317, P321, P330, P332+P317, P362+P364, P370+P378, P391, P403+P235, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 88 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H226: Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

Section 4. First-Aid Measures

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

Section 5. Fire-Fighting Measures

Excerpt from ERG Guide 129 [Flammable Liquids (Water-Miscible / Noxious)]:

CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.

SMALL FIRE: Dry chemical, CO2, water spray or alcohol-resistant foam. Do not use dry chemical extinguishers to control fires involving nitromethane (UN1261) or nitroethane (UN2842).

LARGE FIRE: Water spray, fog or alcohol-resistant foam. Avoid aiming straight or solid streams directly onto the product. If it can be done safely, move undamaged containers away from the area around the fire.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2024)

Section 6. Accidental Release Measures

Excerpt from ERG Guide 129 [Flammable Liquids (Water-Miscible / Noxious)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.

LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Section 7. Handling and Storage

Excerpt from ERG Guide 129 [Flammable Liquids (Water-Miscible / Noxious)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean, non-sparking tools to collect absorbed material.

LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)

Section 8. Exposure Controls / Personal Protection

Wear self-contained positive pressure breathing apparatus and full protective clothing. (USCG, 1999)

Section 9. Physical and Chemical Properties

M-chlorotoluene is a colorless liquid. Specific gravity 1.072. Denser than water, thus sinks in water. Flash point less than 141 °F. Vapors irritating and narcotic in high concentrations. Used as solvents and as an intermediate for making other chemicals and dyes.

Colorless liquid; [Hawley]

324 °F at 760 mmHg (NTP, 1992)

-54 °F (NTP, 1992)

126 °F (NTP, 1992)

1.0722 at 68 °F (USCG, 1999) - Denser than water; will sink

10 mmHg at 109.8 °F (NTP, 1992)

3.68 [mmHg]

13C nuclear magnetic resonance spectrum

Angular frequency

Boiling point

Chemical diffusion

Chemical shift

Diamagnetic susceptibility

Dielectric constant

Diffusion

Diffusive flux

Excess enthalpy

External quantum efficiency

Heat of sublimation

Luminescence

Luminescence emission linewidth

Magnetic susceptibility

Nuclear quadrupole resonance spectroscopy

Optical coefficient

Polarization degree

Quadrupole coupling

Refractive index

Sound absorption

Sound propagation

Sound velocity

Spin-spin coupling constant

Thermal expansion coefficient

Vapor pressure

Viscosity

Solvents -> Chlorinated Aromatics

Section 10. Stability and Reactivity

Flammable. Slightly soluble in water.

Aryl Halides

Highly Flammable

M-CHLOROTOLUENE is generally unreactive. May be incompatible with strong oxidizing and reducing agents. May be incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides.

Section 11. Toxicological Information

Neurotoxin - Acute solvent syndrome

Section 14. Transport Information

Flammable Liquid

Source: PubChem CID 7931 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 09:50:35.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.