DIPHENYLAMINE

International Chemical Safety Cards

DIPHENYLAMINE

ICSC: 0466

DIPHENYLAMINE
N-Phenylaniline
Anilinobenzene
N,N-Diphenylamine
C₁₂H₁₁N / C₆H₅NHC₆H₅
Molecular mass: 169.2
CAS # 122-39-4
RTECS # JJ7800000
ICSC # 0466
UN # 2811
EC # 612-026-00-5

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	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. Blue lips or finger nails. Blue skin. Headache. Dizziness. Nausea. Confusion. Convulsions. Unconsciousness.	Local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention. See Notes.
SKIN	MAY BE ABSORBED! Redness. Blue lips or fingernails. Blue skin (further see Inhalation).	Protective gloves. Protective clothing.	Rinse and then wash skin with water and soap. Refer for medical attention.
EYES	Redness.	Safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION	(further see Inhalation).	Do not eat, drink, or smoke during work.	Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give plenty of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting, then remove to safe place (extra personal protection: chemical suit with self-contained breathing apparatus).

Separated from strong acids, oxidants.

T symbol
R: 23/24/25-33
S: (1/2-)28-36/37-45
UN Hazard Class: 6.1
UN Packing Group: II

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0466

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

DIPHENYLAMINE

ICSC: 0466

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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 oxidants and strong acids.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV (as TWA): ppm; 10 mg/m³ (ACGIH 1995-1996).

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol, 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 irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the blood , resulting in formation of methaemoglobin. See Notes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the kidneys and blood , resulting in formation of methaemoglobin.

PHYSICAL
PROPERTIES

Boiling point: 302°C
Melting point: 53°C
Relative density (water = 1): 1.2
Solubility in water: none
Vapour pressure, Pa at 108°C: 133

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: 3.34