International Chemical Safety Cards

o-TOLIDINE ICSC: 0960
o-TOLIDINE
3,3'-Dimethyl-(1,1'-biphenyl)-4,4'-diamine
Bianisidine
3-3'-Dimethylbenzidine
C14H16N2
Molecular mass: 212.3
CAS # 119-93-7
RTECS # DD1225000
ICSC # 0960
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
  • Cough.
    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.

  • INGESTION

  • Do not eat, drink, or smoke during work.
    Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (extra personal protection: complete protective clothing including self-contained breathing apparatus).
    Separated from strong oxidants, strong acids, food and feedstuffs. Cool. Keep in the dark. Keep in a well-ventilated room.
    Airtight. Do not transport with food and feedstuffs.
    T symbol
    R: 45-22
    S: 53-44
    UN Hazard Class: 6.1
    UN Packing Group: II
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0960 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

    International Chemical Safety Cards

    o-TOLIDINE ICSC: 0960

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    PHYSICAL STATE; APPEARANCE:
    WHITE TO RED CRYSTALS OR CRYSTALLINE POWDER

    PHYSICAL DANGERS:


    CHEMICAL DANGERS:
    The substance decomposes on heating and on burning producing toxic fumes including nitrogen oxides. The substance is degraded by light.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
    TLV: ppm; mg/m3 A2 (skin) (ACGIH 1991-1992).


    ROUTES OF EXPOSURE:
    The substance can be absorbed into the body by inhalation of its aerosol, through the skin, 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 SHORT-TERM EXPOSURE:
    The substance irritates the respiratory tract. The effects may be delayed. Medical observation is indicated.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    This substance is probably carcinogenic to humans.
    PHYSICAL
    PROPERTIES
    Boiling point: 200C
    Melting point: 129-131C
    Relative density (water = 1): 1
    Solubility in water: Poor
    Octanol/water partition coefficient as log Pow: 2.34
    ENVIRONMENTAL
    DATA

    NOTES
    Transport Emergency Card: TEC (R)-61 G12b
    ADDITIONAL INFORMATION


    ICSC: 0960 o-TOLIDINE
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither the CEC or 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. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.