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3,3'-DIAMINOBENZIDINE
ICSC: 1666
Peer-Review Status: 20.04.2007 Validated
3,3',4,4'-Biphenyltetramine
(1,1'-Biphenyl)-3,3',4,4'-tetraamine
3,3',4,4'-Diphenyltetramine
3,3',4,4'-Tetraaminobiphenyl
Biphenyl-3,3',4,4'-tetrayltetraamine 
CAS #: 91-95-2 RTECS #: DV8750000
EINECS #: 202-110-6
    Formula: C12H14N4 / (NH2)2C6H3C6H3(NH2)2
Molecular mass: 214.3

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use water spray, powder, alcohol-resistant foam, carbon dioxide. 
EXPLOSION      
 
EXPOSURE   AVOID ALL CONTACT!   
Inhalation   Use closed system or ventilation.  Fresh air, rest. 
Skin   Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety spectacles.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). 
Ingestion   Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Give one or two glasses of 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. If appropriate, moisten first to prevent dusting.   
EC Classification
 
UN Classification
 
GHS Classification
Signal: Warning
Harmful if swallowed
Suspected of causing genetic defects
Suspected of causing cancer 
excl mark;warncancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
  Dry. Well closed. Separated from food and feedstuffs and strong oxidants. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
RED-TO-BROWN HYGROSCOPIC SOLID IN VARIOUS FORMS. 

Physical dangers
 

Chemical dangers
Decomposes on burning. This produces nitrogen oxides. Reacts with strong oxidants. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):.
MAK: Carcinogen category: 3B; (DFG 2006). 

Routes of exposure
The substance can be absorbed into the body in hazardous amounts by inhalation of its aerosol and by ingestion. 

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

Effects of short-term exposure
May cause mechanical irritation to the eyes. 

Effects of long-term or repeated exposure
This substance is possibly carcinogenic to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 176°C
Solubility in water: very poor
Flash point: >200°C
Auto-ignition temperature: 560°C
Octanol/water partition coefficient as log Pow: 0.09  
 

NOTES
Do NOT take working clothes home.
Depending on the degree of exposure, periodic medical examination is suggested.
Environmental effects from the substance have not been investigated.
The recommendations on this Card also apply to 3,3'-Diaminobenzidine tetrahydrochloride, CAS-number 7411-49-6. 

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