o-DIANISIDINE 1582
April 2005
C.I. Disperse Black 6
CAS No: 119-90-4
3,3'-Dimethoxybenzidine
RTECS No: DD0875000
3,3'-Dianisidine
UN No: 2431
3,3'-Dimethoxy-4,4'-diaminobiphenyl
EC No: 612-036-00-X
C14H16N2O2
Molecular mass: 244.3
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Combustible. Gives off irritating or NO open flames. Water spray. Dry powder. Carbon
FIRE
toxic fumes (or gases) in a fire. dioxide.
EXPLOSION
EXPOSURE See EFFECTS OF LONG-TERM AVOID ALL CONTACT!
OR REPEATED EXPOSURE.
Cough. Ventilation (not if powder), local Fresh air, rest.
Inhalation
exhaust, or breathing protection.
Protective gloves. Protective Remove contaminated clothes.
Skin
clothing. Rinse and then wash skin with water
and soap.
Redness. Face shield or eye protection in First rinse with plenty of water for
Eyes
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
Do not eat, drink, or smoke during Rinse mouth. Refer for medical
Ingestion
work. Wash hands before eating. attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P3 filter respirator for toxic T Symbol Do not transport with food and
particles. Chemical protection suit. Vacuum spilled R: 45-22 feedstuffs.
material. S: 53-45
Note: E
UN Hazard Class: 6.1
UN Pack Group: III
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61S2431 or Separated from oxidants and food and feedstuffs. Well closed.
61GT1-III
NFPA Code: H-; F1; R0
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2005
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
1582 o-DIANISIDINE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS CRYSTALS The substance can be absorbed into the body by inhalation,
through the skin and by ingestion.
Physical dangers
Inhalation risk
The vapour is heavier than air and may travel along the ground;
distant ignition possible. A harmful concentration of airborne particles can be reached
quickly on spraying or when dispersed, especially if powdered.
Chemical dangers
Effects of long-term or repeated exposure
The substance decomposes on burning producing toxic fumes
including nitrogen oxides. Reacts with oxidants. This substance is probably carcinogenic to humans.
Occupational exposure limits
MAK: Carcinogen category: 2; (DFG 2004).
TLV not established.
PHYSICAL PROPERTIES
Melting point: 137.5/C Flash point: 206/C c.c.
Solubility in water, g/100 ml at 25/C: 0.006 Octanol/water partition coefficient as log Pow: 1.81
Vapour pressure, Pa at /C: negligible
ENVIRONMENTAL DATA
NOTES
Do NOT take working clothes home.
Depending on the degree of exposure, periodic medical examination is suggested.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
漏IPCS 2005
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