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3,3'-DIAMINOBENZIDINEICSC: 1666
April 2007
CAS #: 91-95-2(1,1'-Biphenyl)-3,3',4,4'-tetraamine
3,3',4,4'-Diphenyltetramine
3,3',4,4'-Tetraaminobiphenyl
Biphenyl-3,3',4,4'-tetrayltetraamine
3,3',4,4'-Biphenyltetramine
EINECS #: 202-110-6

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.    NO open flames.    Use water spray, powder, alcohol-resistant foam, carbon dioxide.   

 AVOID ALL CONTACT!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
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 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. If appropriate, moisten first to prevent dusting. 

According to UN GHS Criteria

excl mark;warncancer;health haz
WARNING
Harmful if swallowed
Suspected of causing genetic defects
Suspected of causing cancer 

Transportation
UN Classification
 

STORAGE
Dry. Well closed. Separated from food and feedstuffs and strong oxidants. Store in an area without drain or sewer access. 
PACKAGING
 
3,3'-DIAMINOBENZIDINE ICSC: 1666
PHYSICAL & CHEMICAL INFORMATION

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. 

Formula: C12H14N4 / (NH2)2C6H3C6H3(NH2)2
Molecular mass: 214.3
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  


EXPOSURE & HEALTH EFFECTS

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

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

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

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


Occupational exposure limits
MAK: carcinogen category: 3B 

ENVIRONMENT
 

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
  EC Classification
 

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    See Also:
       Toxicological Abbreviations