ICSC 1441 - o-PHENYLENEDIAMINE

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

o-PHENYLENEDIAMINE

ICSC: 1441
_{October 2002}

o-Diaminobenzene
1,2-Benzenediamine
2-Aminoaniline
1,2-Phenylenediamine

CAS No: 95-54-5
RTECS No: SS7875000
UN No: 1673
EC No: 612-145-00-2

C₆H₈N₂ / C₆H₄ (NH₂)₂
Molecular mass: 108.16

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRE FIGHTING
FIRE	Combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Water spray, powder.
EXPLOSION	Finely dispersed particles form explosive mixtures in air.	Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE		STRICT HYGIENE!
Inhalation	Blue lips or finger nails. Blue skin. Confusion. Convulsions. Dizziness. Headache. Nausea. Unconsciousness.	Local exhaust or breathing protection.	Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin	Redness.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Safety goggles, or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	(See Inhalation).	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: P3 filter respirator for toxic particles.)	T Symbol N Symbol R: 20/21-25-36-40-43-50/53-68 S: (1/2-)28-36/37-45-60-61 Note: C UN Hazard Class: 6.1 UN Pack Group: III	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	STORAGE
NFPA Code: H; F1; R0; Transport Emergency Card: TEC (R)-61S1673-S	Separated from food and feedstuffs. Well closed.

IMPORTANT DATA

Physical State; Appearance
BROWN TO YELLOW CRYSTALS. TURNS DARK ON EXPOSURE TO LIGHT.

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.

Occupational exposure limits
TLV: 0.1 mg/m³; A3; (ACGIH 2002).
MAK: Carcinogen category: 3B; Sh sensitization; (DFG 2002).

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

Inhalation risk
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster.

Effects of short-term exposure
The substance is irritating to the eyes and is mildly irritating to the skin and the respiratory tract. The substance may cause effects on the blood, resulting in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the blood, resulting in anaemia. This substance is possibly carcinogenic to humans.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 256-258°C Melting point: 103-104°C Solubility in water, g/100 ml at 35°C: 0.4 Vapour pressure, kPa at 20°C: 0.0013 Relative vapour density (air = 1): 3.73 Flash point: 156°C c.c. Explosive limits, vol% in air: 1.5-? Octanol/water partition coefficient as log Pow: 0.15 (calculated)	The substance is very toxic to aquatic organisms. Do not to let this chemical enter the environment.

NOTES

Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Also consult ICSC 0805 p-Phenylenediamine and ICSC 1302 m-Phenylenediamine.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2002

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Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

Updated by AS. Approved by EC. Last update: 21.03.2003