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NIOSH

DIPHENYLAMINE

ICSC: 0466

N-Phenylaniline
Anilinobenzene
N,N-Diphenylamine
N-Phenylbenzamine
C12H11N / C6H5NHC6H5
Molecular mass: 169.2
ICSC # 0466 		CAS # 122-39-4
RTECS # JJ7800000
UN # 3077
EC # 612-026-00-5
October 11, 2006 Validated

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, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE
PREVENT DISPERSION OF DUST!

•INHALATION Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest.
•SKIN Redness.
Protective gloves.
Rinse and then wash skin with water and soap.
•EYES Redness.
Safety goggles
Rinse with plenty of water (remove contact lenses if easily possible).
•INGESTION Sore throat.
Do not eat, drink, or smoke during work.
Rinse mouth. Give one or two glasses of water to drink.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: P2 filter respirator for harmful particles. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting, then remove to safe place. Do NOT let this chemical enter the environment.
Provision to contain effluent from fire extinguishing. Separated from strong acids, oxidants . Store in an area without drain or sewer access.

marine pollutant.
T symbol
N symbol
R: 23/24/25-33-50/53
S: 1/2-28-36/37-45-60-61
UN Hazard Class: 9
UN Packing Group: III
Signal: Warning
May be harmful if swallowed
May be harmful in contact with skin
Toxic to aquatic life
ICSC: 0466 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

DIPHENYLAMINE

ICSC: 0466

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air.

CHEMICAL DANGERS:
The substance decomposes on heating or on burning producing toxic fumes including nitrogen oxides . Reacts with strong oxidants and strong acids .

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 mg/m3 as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2006).
MAK not established.
OSHA PEL†: none
NIOSH REL: TWA 10 mg/m3
NIOSH IDLH: N.D. See: IDLH INDEX


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

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

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the kidneys , resulting in impaired functions. The substance may have effects on the blood , resulting in anaemia.

PHYSICAL
PROPERTIES

Boiling point: 302°C
Melting point: 53°C
Density: 1.2
g/cm3
Solubility in water: (very poor)
Vapour pressure, Pa at 20°C: negligible
Relative vapour density (air = 1): 5.8
Flash point: 153°C c.c.
Auto-ignition temperature: 634°C
Octanol/water partition coefficient as log Pow: 3.5

ENVIRONMENTAL
DATA

The substance is toxic to aquatic organisms. It is strongly advised that this substance does not enter the environment. The substance may cause long-term effects in the aquatic environment.

N O T E S

Technical product may contain a carcinogenic impurity (4-aminobiphenyl).
Transport Emergency Card: TEC (R)-90GM7-III
NFPA Code: H2; F1; R0

ADDITIONAL INFORMATION



ICSC: 0466 DIPHENYLAMINE
(C) IPCS, CEC, 1994
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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