1,5-Diaminonaphthalene
1,5-Naphthylenediamine
C10H10N2 / C10H6(NH2)2
Molecular mass: 158.2
ICSC # 0668
CAS # 2243-62-1
RTECS # QJ3400000
EC # 612-089-00-9
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Water spray, foam, powder, carbon dioxide.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
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•Inhalation
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Local exhaust.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Protective gloves.
Protective clothing.
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Rinse and then wash skin with water and soap.
Refer for medical attention.
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•Eyes
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Safety spectacles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
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Rest.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: P2 filter respirator for harmful particles.
Do NOT let this chemical enter the environment.
Sweep spilled substance into sealable containers.
Carefully collect remainder,
then remove to safe place.
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Well closed.
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Xn symbol
N symbol
R: 40-50/53
S: 2-36/37-60-61
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Important Data
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Physical State; Appearance:
COLOURLESS
TO LIGHT PURPLE CRYSTALS.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on burning
producing
toxic fumes
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Occupational Exposure Limits:
TLV not established.
MAK: skin absorption (H); sensitization of skin (Sh);
Carcinogen category: 2;
(DFG 2005).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol
and
by ingestion.
Inhalation Risk:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
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Physical
Properties
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Boiling point:
Sublimation
Melting point: 187°C
Density: 1.4
g/cm3
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Solubility in water, g/100 ml at 20°C: 0.004
Vapour pressure, Pa at 20°C: 0.0000023
Flash point: 226°C
Auto-ignition temperature: 580°C
Octanol/water partition coefficient as log Pow: 1.48
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Environmental
Data
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The substance is harmful to aquatic organisms.
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N O T E S
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Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
Alphamin is a trade name.
Card has been partly updated in October 2005. See section Occupational Exposure Limits.
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ADDITIONAL INFORMATION
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ICSC: 0668
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1,5-NAPHTHALENEDIAMINE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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