English Safety Data Sheet Database 中文版 MSDS

p-Tolunitrile

CAS No. 104-85-8 | PubChem CID 7724
Section 1. Identification
Chemical Namep-Tolunitrile CAS No.104-85-8
Synonymsp-tolunitrile; 4-methylbenzonitrile Chinese Name4-甲基苯甲晴
Molecular FormulaC8H7N Molecular Weight117.1479
UN No. Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS07 · Irritant GHS08 · Health Hazard
Hazard Statements H315H319H334H335H412
Precautionary Statements P233P260P261P264P264+P265P271P273P280P284P302+P352P304+P340P305+P351+P338P319P321P332+P317P337+P317P342+P316P362+P364P403P403+P233P405P501

Section 2. Hazards Identification

This chemical does not meet GHS hazard criteria for 0.5% (1 of 207) of reports.

H315 (99%): Causes skin irritation [Warning Skin corrosion/irritation]

H319 (99%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H334 (19.3%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]

H335 (96.1%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

H412 (50.2%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P233, P260, P261, P264, P264+P265, P271, P273, P280, P284, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P342+P316, P362+P364, P403, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 207 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Reported as not meeting GHS hazard criteria per 1 of 207 reports by companies.

There are 9 notifications provided by 206 of 207 reports by companies with hazard statement code(s).

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.

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

Fires involving this compound can be controlled using a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)

Section 6. Accidental Release Measures

Excerpt from ERG Guide 131 [Flammable Liquids - Toxic]:

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

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

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

SMALL SPILLS AND LEAKAGE: Should a spill occur while you are handling this chemical, you should dampen the solid spill material with alcohol, then transfer the dampened material to a suitable container. Use absorbent paper dampened with alcohol to pick up any remaining material. Seal the absorbent paper, and any of your clothes, which may be contaminated, in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminate area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

STORAGE PRECAUTIONS: You should store this material in a refrigerator. (NTP, 1992)

Section 8. Exposure Controls / Personal Protection

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

Section 9. Physical and Chemical Properties

P-tolunitrile is a beige solid at 62.6 °F. (NTP, 1992)

423.7 °F at 760 mmHg (NTP, 1992)

85.1 °F (NTP, 1992)

185 °F (NTP, 1992)

less than 1 mg/mL at 63 °F (NTP, 1992)

0.9805 at 86 °F (NTP, 1992) - Less dense than water; will float

13C nuclear magnetic resonance spectrum

Boiling point

Chemical shift

Heat of sublimation

Nuclear quadrupole resonance spectroscopy

Quadrupole coupling

Spin-spin coupling constant

Surface tension

Vapor pressure

Viscosity

Section 10. Stability and Reactivity

Insoluble in water.

Nitriles

Nitriles, such as P-TOLUNITRILE, may polymerize in the presence of metals and some metal compounds. They are incompatible with acids; mixing nitriles with strong oxidizing acids can lead to extremely violent reactions. Nitriles are generally incompatible with other oxidizing agents such as peroxides and epoxides. The combination of bases and nitriles can produce hydrogen cyanide. Nitriles are hydrolyzed in both aqueous acid and base to give carboxylic acids (or salts of carboxylic acids). These reactions generate heat. Peroxides convert nitriles to amides. Nitriles can react vigorously with reducing agents. Acetonitrile and propionitrile are soluble in water, but nitriles higher than propionitrile have low aqueous solubility. They are also insoluble in aqueous acids.

Section 14. Transport Information

Flammable Liquid Poison

Source: PubChem CID 7724 (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 09:44:31.
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.