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PHTHALODINITRILEICSC: 0670
October 2004
CAS #: 91-15-6Phthalic acid dinitrile
1,2-Benzenedicarbonitrile
1,2-Dicyanobenzene
o-Benzenedinitrile
UN #: 3276
EINECS #: 202-044-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.  Use dry powder, carbon dioxide, foam.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Dizziness. Headache. Nausea. Vomiting. Convulsions. Unconsciousness.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin   Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes   Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Dizziness. Headache. Nausea. Vomiting. Convulsions. Unconsciousness.  Do not eat, drink, or smoke during work.  Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give a slurry of activated charcoal in water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Carefully collect remainder. 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: III 

STORAGE
Separated from strong oxidants and food and feedstuffs. 
PACKAGING
Do not transport with food and feedstuffs. 
PHTHALODINITRILE ICSC: 0670
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW CRYSTALLINE POWDER WITH CHARACTERISTIC ODOUR. 

Physical dangers
No data. 

Chemical dangers
Decomposes on heating. This produces toxic fumes including cyanide. On combustion, forms nitrogen oxides. Reacts with strong oxidants. 

Formula: C8H4N2 / C6H4(CN)2
Molecular mass: 128.1
Boiling point: 304.5°C
Melting point: 141°C
Density: 1.24 g/cm³
Solubility in water, g/100ml at 25°C: 0.06
Vapour pressure, Pa at 20°C: 4
Flash point: 162°C
Auto-ignition temperature: >580°C
Octanol/water partition coefficient as log Pow: 0.58  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance may cause effects on the central nervous system. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: 1 mg/m3, ppm, as TWA 

ENVIRONMENT
The substance is harmful to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations