IPCS INCHEM Home
1,5-NAPHTHALENEDIAMINEICSC: 0668
1,5-Diaminonaphthalene
1,5-Naphthylenediamine
March 1999
CAS #: 2243-62-1
EC Number: 218-817-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use water spray, foam, powder, carbon dioxide.   

 PREVENT DISPERSION OF DUST! STRICT HYGIENE!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation   Use local exhaust.  Fresh air, rest. Refer for medical attention. 
Skin   Protective gloves. Protective clothing.  Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes   Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Rest. Refer for medical attention . 

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 sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Well closed. 
PACKAGING
 
1,5-NAPHTHALENEDIAMINE ICSC: 0668
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-LIGHT-PURPLE CRYSTALS. 

Physical dangers
 

Chemical dangers
Decomposes on burning. This produces toxic fumes. 

Formula: C10H10N2 / C10H6(NH2)2
Molecular mass: 158.2
Boiling point: sublimes
Melting point: 187°C
Density: 1.4 g/cm³
Solubility in water, g/100ml 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  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. 


OCCUPATIONAL EXPOSURE LIMITS
MAK: skin absorption (H); sensitization of skin (SH); carcinogen category: 2 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn, N; R: 40-50/53; S: (2)-36/37-60-61 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations