C.I. Disperse Black 6
3,3'-Dimethoxybenzidine
3,3'-Dianisidine
3,3'-Dimethoxy-4,4'-diaminobiphenyl
C14H16N2O2
Molecular mass: 244.3
ICSC # 1582
CAS # 119-90-4
RTECS # DD0875000
UN # 2431
EC # 612-036-00-X
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Water spray.
Dry powder.
Carbon dioxide.
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Explosion
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Exposure
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See EFFECTS OF LONG-TERM OR REPEATED Exposure.
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AVOID ALL CONTACT!
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•Inhalation
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Cough.
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Ventilation (not if powder), local exhaust, or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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Face shield
or
eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: P3 filter respirator for toxic particles.
Chemical protection suit.
Vacuum spilled material.
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Separated from oxidantsandfood and feedstuffs.
Well closed.
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Do not transport with food and feedstuffs.
Note: E
T symbol
R: 45-22
S: 53-45
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS CRYSTALS
Physical Dangers:
The vapour is heavier than air and may travel along the ground; distant ignition possible.
Chemical Dangers:
The substance decomposes
on burning
producing
toxic fumes
including
nitrogen oxides
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Reacts with oxidants.
Occupational Exposure Limits:
MAK:
Carcinogen category: 2;
(DFG 2004).
TLV not established.
OSHA PEL: See Appendix C
NIOSH REL: Ca See Appendix A See Appendix C
NIOSH IDLH: Ca N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation,
through the skin
and
by ingestion.
Inhalation Risk:
A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
This substance is probably carcinogenic to humans.
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Physical
Properties
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Melting point: 137.5°C
Solubility in water, g/100 ml at 25°C: 0.006
Vapour pressure, Pa at °C: negligible
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Flash point: 206°C c.c.
Octanol/water partition coefficient as log Pow: 1.81
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Environmental
Data
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N O T E S
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Do NOT take working clothes home.
Depending on the degree of exposure, periodic medical examination is suggested.
Transport Emergency Card: TEC (R)-61S2431 or 61GT1-III
NFPA Code: H-; F1; R0;
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ADDITIONAL INFORMATION
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ICSC: 1582
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o-DIANISIDINE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
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.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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