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N,N'-DIPHENYL-para-PHENYLENEDIAMINE ICSC: 1181
Date of Peer Review: October 1995

N,N-Diphenyl-1,4-benzenediamine
1,4-bis(Phenylamino)benzene
1,4-Dianilinobenzene
CAS # 74-31-7 C6H5NHC6H4NHC6H5 / C18H16N2
RTECS # ST2275000 Molecular mass: 260.3
UN #
EC # 612-132-00-1
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! STRICT HYGIENE!

Inhalation
Local exhaust.
Fresh air, rest.
Skin
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes
Face shield.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place.
EU Classification
Symbol: Xi
R: 43-52/53
S: (2-)-24-37-61
UN Classification

EMERGENCY RESPONSE SAFE STORAGE

Separated from strong oxidants. Keep in a well-ventilated room.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


N,N'-DIPHENYL-para-PHENYLENEDIAMINE ICSC: 1181
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS OR GREY POWDER.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes including nitrogen oxides. Reacts with oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:
Evaporation at 20C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization.
PHYSICAL PROPERTIES
Boiling point at 0.066 kPa: 220-225C
Melting point: 150-151C
Relative density (water = 1): 1.2
Solubility in water: none
Relative vapour density (air = 1): 9.0
ENVIRONMENTAL DATA

NOTES
Commercial grades of the compound are greenish-brown. Agerite, Altofane-Dif, Diafen FF, Flexamine G and Permanax 18 are trade names.
Card has been partly updated in April 2005. See section EU classification.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor 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
IPCS, CEC 2004