ACETONITRILE 0088
March 2002
Methyl cyanide
CAS No: 75-05-8
Cyanomethane
RTECS No: AL7700000
Ethanenitrile
UN No: 1648
Methanecarbonitrile
EC No: 608-001-00-3
C2H3N / CH3CN
Molecular mass: 41.0
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Highly flammable. Gives off NO open flames, NO sparks, and Alcohol-resistant foam, dry powder,
FIRE
irritating or toxic fumes (or gases) NO smoking. NO contact with carbon dioxide.
in a fire. oxidants.
Vapour/air mixtures are explosive. Closed system, ventilation, In case of fire: keep drums, etc.,
EXPLOSION
Risk of fire and explosion on explosion-proof electrical equipment cool by spraying with water.
contact with oxidants. and lighting. Do NOT use
compressed air for filling,
discharging, or handling.
EXPOSURE STRICT HYGIENE! IN ALL CASES CONSULT A
DOCTOR!
Sore throat. Weakness. Abdominal Ventilation, local exhaust, or Fresh air, rest. Artificial respiration
Inhalation
pain. Laboured breathing. breathing protection. may be needed. Refer for medical
Convulsions. Unconsciousness. attention.
Vomiting. Symptoms may be
delayed (see Notes).
Redness. Protective gloves. Remove contaminated clothes.
Skin
Rinse skin with plenty of water or
shower. Refer for medical attention.
Redness. Pain. Face shield or eye protection in First rinse with plenty of water for
Eyes
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
(See Inhalation). Do not eat, drink, or smoke during Rinse mouth. Induce vomiting
Ingestion
work. (ONLY IN CONSCIOUS
PERSONS!). Give plenty of water to
drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Remove all ignition sources. Collect F Symbol
leaking liquid in sealable containers. Absorb Xn Symbol
remaining liquid in dry sand or inert absorbent and R: 11-20/21/22-36
remove to safe place. Do NOT wash away into S: (1/2-)16-36/37
sewer. Personal protection: complete protective UN Hazard Class: 3
clothing including self-contained breathing UN Pack Group: II
apparatus.
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1648 Fireproof. Separated from acids, bases and oxidants. Cool. Well closed.
NFPA Code: H 2; F 3; R 0
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2005
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0088 ACETONITRILE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR. The substance can be absorbed into the body by inhalation of
its vapour, through the skin and by ingestion.
Physical dangers
Inhalation risk
The vapour mixes well with air, explosive mixtures are easily
formed. A harmful contamination of the air can be reached rather quickly
on evaporation of this substance at 20/C.
Chemical dangers
Effects of short-term exposure
The substance decomposes on burning producing toxic fumes
including hydrogen cyanide and nitrogen oxides. Reacts with The substance is irritating to the eyes, the skin and the
aqueous acids and bases producing toxic fumes. Reacts with respiratory tract. The substance may cause effects on the
strong oxidants causing fire and explosion hazard. Attacks some cellular respiration (inhibition), resulting in convulsions and
forms of plastic, rubber and coatings. respiratory failure. Exposure far above the OEL may result in
death. The effects may be delayed. Medical observation is
indicated.
Occupational exposure limits
TLV: 20 ppm as TWA; (skin); A4 (not classifiable as a human
carcinogen); (ACGIH 2004).
MAK: 20 ppm, 34 mg/m3; Peak limitation category: II(2); skin
absorption (H); Pregnancy risk group: C; (DFG 2004).
PHYSICAL PROPERTIES
Boiling point: 82/C Relative density of the vapour/air-mixture at 20/C (air = 1): 1.04
Melting point: -46/C Flash point: 12.8/C c.c.
Relative density (water = 1): 0.8 Auto-ignition temperature: 524/C
Solubility in water: miscible Explosive limits, vol% in air: 3.0-16
Vapour pressure, kPa at 20/C: 9.7 Octanol/water partition coefficient as log Pow: -0.3
Relative vapour density (air = 1): 1.4
ENVIRONMENTAL DATA
NOTES
The symptoms of acute intoxication do not become manifest until after a few hours.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Card has been partly updated in April 2005. See section Occupational Exposure Limits.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
漏IPCS 2005
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