ICSC 0466 - DIPHENYLAMINE

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DIPHENYLAMINE	ICSC: 0466 (October 2006)
N-Phenylaniline Anilinobenzene N,N-Diphenylamine N-Phenylbenzamine

CAS #: 122-39-4

UN #: 3077

EC Number: 204-539-4

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Finely dispersed particles form explosive mixtures in air.	NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.	Use water spray, powder, alcohol-resistant foam, carbon dioxide.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness.	Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness.	Wear safety goggles.	Rinse with plenty of water for several minutes (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	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Then store and dispose of according to local regulations.	According to UN GHS Criteria May be harmful if swallowed or in contact with skin Toxic to aquatic life Transportation UN Classification UN Hazard Class: 9; UN Pack Group: III; UN Pack Group: II
STORAGE
Provision to contain effluent from fire extinguishing. Separated from strong acids and oxidants. Store in an area without drain or sewer access.
PACKAGING
Marine pollutant.

DIPHENYLAMINE

ICSC: 0466

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS CRYSTALS WITH CHARACTERISTIC ODOUR. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers Decomposes on heating and on burning. This produces toxic fumes including nitrogen oxides. Reacts with strong oxidants and strong acids.	Formula: C₁₂H₁₁N / C₆H₅NHC₆H₅ Molecular mass: 169.2 Boiling point: 302°C Melting point: 53°C Density: 1.2 g/cm³ Solubility in water: very poor Vapour pressure 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

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS CRYSTALS WITH CHARACTERISTIC ODOUR.

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air.

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes including nitrogen oxides. Reacts with strong oxidants and strong acids.

Formula: C₁₂H₁₁N / C₆H₅NHC₆H₅
Molecular mass: 169.2
Boiling point: 302°C
Melting point: 53°C
Density: 1.2 g/cm³
Solubility in water: very poor
Vapour pressure 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

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure The substance is irritating to the eyes and respiratory tract.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. Effects of long-term or repeated exposure The substance may have effects on the kidneys. This may result in impaired functions. The substance may have effects on the blood. This may result in anaemia.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract.

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

Effects of long-term or repeated exposure
The substance may have effects on the kidneys. This may result in impaired functions. The substance may have effects on the blood. This may result in anaemia.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 mg/m³, as TWA; A4 (not classifiable as a human carcinogen). MAK: (inhalable fraction): 5 mg/m³; peak limitation category: II(2); skin absorption (H); carcinogen category: 3; pregnancy risk group: C

ENVIRONMENT
The substance is toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment. The substance may cause long-term effects in the aquatic environment.

NOTES
Technical product may contain a carcinogenic impurity (4-aminobiphenyl).

ADDITIONAL INFORMATION

EC Classification
Symbol: T, N; R: 23/24/25-33-50/53; S: (1/2)-28-36/37-45-60-61

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