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PHTHALODINITRILE
ICSC: 0670
Peer-Review Status: 27.10.2004 Validated
Phthalic acid dinitrile
1,2-Benzenedicarbonitrile
1,2-Dicyanobenzene
o-Benzenedinitrile 
CAS #: 91-15-6 RTECS #: TI8575000
UN #: 3276
EINECS #: 202-044-8
    Formula: C8H4N2 / C6H4(CN)2
Molecular mass: 128.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames.  Use dry powder, carbon dioxide, foam. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust.   
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Dizziness. Headache. Nausea. Vomiting. Convulsions. Unconciousness.  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
PACKAGING & 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.  Do not transport with food and feedstuffs. 
EC Classification
 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GT1-III.  Separated from strong oxidants and food and feedstuffs. 

IMPORTANT DATA
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. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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

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

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

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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  
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
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations