N,N-Diphenylbenzenamine
N,N-Diphenylaniline
C18H15N / (C6H5)3N
Molecular mass: 245.3
ICSC # 1366
CAS # 603-34-9
RTECS # YK2680000
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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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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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Explosion
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Finely dispersed particles form explosive mixtures in air.
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Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Ventilation.
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Fresh air, rest.
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•Skin
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Redness.
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Protective gloves.
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Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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Safety goggles
.
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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.
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Rinse mouth.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: P2 filter respirator for harmful particles.
Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting.
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Separated from
acids,
strong oxidants,
and
halogens
.
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Important Data
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Physical State; Appearance:
COLOURLESS
TO WHITE
POWDER
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Dust explosion possible if in powder or granular form, mixed with air.
Chemical Dangers:
The substance decomposes
on burning
producing
toxic fumes
including
nitrogen oxides
.
The solution in water is a weak base.
Reacts
with
acids
,
strong oxidants
and
halogens
.
Occupational Exposure Limits:
TLV: 5 mg/m3 as TWA; (ACGIH 2005).
MAK not established.
OSHA PEL: none
NIOSH REL: TWA 5 mg/m3
NIOSH IDLH: N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by ingestion.
Inhalation Risk:
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
Effects of Short-Term Exposure:
The substance
is mildly irritating to
the eyes
and
the skin
.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 365°C
Melting point: 126.5°C
Density: 0.77
g/cm3
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Solubility in water:
very poor
Flash point: 180°C o.c.
Octanol/water partition coefficient as log Pow: 5.74
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Environmental
Data
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N O T E S
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Environmental effects from the substance have not been investigated.
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ADDITIONAL INFORMATION
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ICSC: 1366
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TRIPHENYLAMINE
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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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