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1-NAPHTHYLAMINEICSC: 0518
alpha-Naphthylamine
1-Aminonaphthalene
April 2000
CAS #: 134-32-7
UN #: 2077
EC Number: 205-138-7

  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, powder, alcohol-resistant foam, carbon dioxide.   

 PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Blue lips, fingernails and skin. Confusion. Dizziness. Headache. Shortness of breath. Weakness.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED! Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety spectacles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Blue lips, fingernails and skin. Dizziness. Headache. Nausea.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 

STORAGE
Dry. Keep in the dark. Well closed. 
PACKAGING
Do not transport with food and feedstuffs. 
1-NAPHTHYLAMINE ICSC: 0518
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. TURNS RED ON EXPOSURE TO AIR, LIGHT AND MOISTURE. 

Physical dangers
 

Chemical dangers
Decomposes on burning. This produces nitrogen oxides and carbon monoxide. The substance is a weak base. 

Formula: C10H9N
Molecular mass: 143.2
Boiling point: 300.8°C
Melting point: 50.0°C
Density: 1.12 g/cm³
Solubility in water: none
Vapour pressure, Pa at 20°C: 0.53
Relative vapour density (air = 1): 4.93
Flash point: 157°C c.c.
Auto-ignition temperature: 460°C
Octanol/water partition coefficient as log Pow: 2.25  


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 mildly irritating to the eyes and skin. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated. See Notes. 

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
See Notes. 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
The substance is harmful to aquatic organisms. It is strongly advised not to let the chemical enter into the environment because it is persistent. 

NOTES
Depending on the degree of exposure, periodic medical examination is indicated.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Bladder cancers reported after occupational exposure to 1-naphthylamine may be due to contamination with 2-naphthylamine which is a human carcinogen. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn, N; R: 22-51/53; S: (2)-24-61 

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    See Also:
       Toxicological Abbreviations