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o-TOLIDINE
ICSC: 0960
Peer-Review Status: 02.04.2009 Validated
3,3'-Dimethyl-(1,1'-biphenyl)-4,4'-diamine
Bianisidine
3,3'-Dimethylbenzidine
4,4'-Bi-o-toluidine 
CAS #: 119-93-7 RTECS #: DD1225000
EC #: 612-041-00-7
EINECS #: 204-358-0
    Formula: C14H16N2
Molecular mass: 212.3

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 powder, water spray, foam, carbon dioxide. 
EXPLOSION      
 
EXPOSURE See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE.  PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!   
Inhalation   Use closed system or ventilation.  Fresh air, rest. 
Skin MAY BE ABSORBED! See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes   Wear safety spectacles.  Rinse with plenty of water (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. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: T, N; R: 45-22-51/53; S: 53-45-61; Note: E 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 
GHS Classification
Signal: Warning
Harmful if swallowed
Suspected of causing cancer
Toxic to aquatic life 
excl mark;warncancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong oxidants and food and feedstuffs. Well closed. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS CRYSTALS OR RED-TO-BROWN FLAKES. 

Physical dangers
No data. 

Chemical dangers
Decomposes on burning. This produces toxic fumes including nitrogen oxides. Reacts with oxidants. 

Occupational exposure limits
TLV: (skin); A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2009).
MAK: Carcinogen category: 2; (DFG 2008). 

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered. 

Effects of short-term exposure
 

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 300°C
Melting point: 131-132°C
Density: 1.2 g/cm³
Solubility in water, g/100ml at 25°C: 0.13 (poor)
Flash point: 244°C
Auto-ignition temperature: 526°C
Octanol/water partition coefficient as log Pow: 2.34  
The substance is toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment. 

NOTES
Do NOT take working clothes home. 

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