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BENZONITRILEICSC: 1103
October 1999
CAS #: 100-47-0Cyanobenzene
Benzoic acid nitrile
Phenyl cyanide
UN #: 2224
EINECS #: 202-855-7

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Above 75°C explosive vapour/air mixtures may be formed.  NO open flames.  Above 75°C use a closed system and ventilation.  Use powder, AFFF, foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Confusion. Headache. Laboured breathing. Nausea. Unconsciousness. Vomiting. Weakness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Rest. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 

STORAGE
Separated from food and feedstuffs. Well closed. Keep in a well-ventilated room. 
PACKAGING
Do not transport with food and feedstuffs. 
BENZONITRILE ICSC: 1103
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes including hydrogen cyanide and nitrogen oxides. Reacts violently with strong acids. This produces highly toxic hydrogen cyanide. Attacks some plastics. 

Formula: C7H5N / C6H5(CN)
Molecular mass: 103.1
Boiling point: 190.7°C
Melting point: -12.8°C
Relative density (water = 1): 1.0
Solubility in water, g/100ml at 22°C: 0.1-0.5 (poor)
Vapour pressure, Pa at 25°C: 102
Relative vapour density (air = 1): 3.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 75°C c.c.
Auto-ignition temperature: 550°C
Explosive limits, vol% in air: 1.4-7.2
Octanol/water partition coefficient as log Pow: 1.56  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the cellular respiration. This may result in cyanosis. The effects may be delayed. Medical observation is indicated. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn; R: 21/22; S: (2)-23 

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    See Also:
       Toxicological Abbreviations