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o-TOLIDINE ICSC: 0960
Date of Peer Review: March 1998

3,3'-Dimethyl-(1,1'-biphenyl)-4,4'-diamine
Bianisidine
3,3'-Dimethylbenzidine
4,4'-Bi-o-toluidine
CAS # 119-93-7 C14H16N2
RTECS # DD1225000 Molecular mass: 212.3
UN # 2811
EC # 612-041-00-7
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.
Powder, water spray, foam, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
Inhalation
Closed system and ventilation.
Fresh air, rest. Refer for medical attention.
Skin MAY BE ABSORBED!
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes
Face shield, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Chemical protection suit including self-contained breathing apparatus.
Do not transport with food and feedstuffs.
EU 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
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61G12c
Separated from strong oxidants, food and feedstuffs. Keep in the dark. Well closed.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK


o-TOLIDINE ICSC: 0960
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS OR RED TO BROWN FLAKES.

CHEMICAL DANGERS:
The substance decomposes on burning producing toxic fumes including nitrogen oxides. Reacts with oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: A3 (skin) (ACGIH 1997).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly especially if powdered.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
This substance is probably carcinogenic to humans.
PHYSICAL PROPERTIES
Boiling point: 200C
Melting point: 131-132C
Density: 1.234 g/cm^3
Solubility in water, g/100 ml at 23-27C: 0.13
Flash point: 244C
Auto ignition temperature: 526C
Octanol/water partition coefficient as log Pow: 2.34
ENVIRONMENTAL DATA

NOTES
Do NOT take working clothes home.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999