o-PHENYLENEDIAMINE 1441
October 2002
o-Diaminobenzene
CAS No: 95-54-5
1,2-Benzenediamine
RTECS No: SS7875000
2-Aminoaniline
UN No: 1673
1,2-Phenylenediamine
EC No: 612-145-00-2
C6H8N2 / C6H4 (NH2)2
Molecular mass: 108.16
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Combustible. Gives off irritating or NO open flames. Water spray, powder.
FIRE
toxic fumes (or gases) in a fire.
Finely dispersed particles form Prevent deposition of dust; closed
EXPLOSION
explosive mixtures in air. system, dust explosion-proof
electrical equipment and lighting.
EXPOSURE STRICT HYGIENE!
Blue lips or finger nails. Blue skin. Local exhaust or breathing Fresh air, rest. Artificial respiration
Inhalation
Confusion. Convulsions. protection. may be needed. Refer for medical
Dizziness. Headache. Nausea. attention.
Unconsciousness.
Redness. Protective gloves. Protective Remove contaminated clothes.
Skin
clothing. Rinse and then wash skin with
water and soap.
Redness. Pain. Safety goggles, or eye protection in First rinse with plenty of water for
Eyes
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
(See Inhalation). Do not eat, drink, or smoke during Rinse mouth. Give a slurry of
Ingestion
work. Wash hands before eating. activated charcoal in water to drink.
Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if T Symbol Do not transport with food and
appropriate, moisten first to prevent dusting. N Symbol feedstuffs.
Carefully collect remainder, then remove to safe R: 20/21-25-36-40-43-50/53-68
place. Do NOT let this chemical enter the S: (1/2-)28-36/37-45-60-61
environment. (Extra personal protection: P3 filter Note: C
respirator for toxic particles.) UN Hazard Class: 6.1
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
NFPA Code: H; F1; R0; Separated from food and feedstuffs. Well closed.
Transport Emergency Card: TEC (R)-61S1673-S
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission
International 漏 IPCS 2002
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
1441 o-PHENYLENEDIAMINE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
BROWN TO YELLOW CRYSTALS. TURNS DARK ON The substance can be absorbed into the body by inhalation and
EXPOSURE TO LIGHT. by ingestion.
Physical dangers Inhalation risk
Dust explosion possible if in powder or granular form, mixed A harmful contamination of the air will not or will only very
with air. slowly be reached on evaporation of this substance at 20掳C; on
spraying or dispersing, however, much faster.
Chemical dangers
Effects of short-term exposure
The substance decomposes on burning producing toxic fumes
including nitrogen oxides. 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
Occupational exposure limits
TLV: 0.1 mg/m3; A3; (ACGIH 2002). methaemoglobin. The effects may be delayed. Medical
observation is indicated.
MAK: Carcinogen category: 3B; Sh sensitization; (DFG 2002).
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
Boiling point: 256-258掳C Relative vapour density (air = 1): 3.73
Melting point: 103-104掳C Flash point: 156掳C c.c.
Solubility in water, g/100 ml at 35掳C: 0.4 Explosive limits, vol% in air: 1.5-?
Vapour pressure, kPa at 20掳C: 0.0013 Octanol/water partition coefficient as log Pow: 0.15 (calculated)
ENVIRONMENTAL DATA
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.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2002
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