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2-NAPHTHOLICSC: 0719
April 2005
CAS #: 135-19-3beta-Naphthol
2-Hydroxynaphthalene
2-Naphthalenol
Isonaphthol
UN #: 3077
EINECS #: 205-182-7

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.  Use water spray, powder, foam, carbon dioxide.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin   Protective gloves. Protective clothing.  Rinse and then wash skin with water and soap. 
Eyes Redness. Pain. Blurred vision.  Wear safety goggles or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Nausea. Vomiting. Diarrhoea.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 9; UN Pack Group: III 

STORAGE
Store in an area without drain or sewer access. 
PACKAGING
 
2-NAPHTHOL ICSC: 0719
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE-TO-YELLOWISH-WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
 

Formula: C10H8O
Molecular mass: 144.2
Boiling point: 285°C
Melting point: 122°C
Density: 1.28 g/cm³
Solubility in water, g/100ml at 25°C: 0.074
Vapour pressure, Pa at 25°C: 2
Relative vapour density (air = 1): 5
Flash point: 153°C
Auto-ignition temperature: 550°C
Octanol/water partition coefficient as log Pow: 2.7  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is severely irritating to the eyes. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the kidneys, blood and eyes. This may result in kidney impairment, anaemia and lens opacities. 


Occupational exposure limits
 

ENVIRONMENT
The substance is very toxic to aquatic organisms. 

NOTES
The substance may be transported in molten state at temperature 135-150°C. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn, N; R: 20/22-50; S: (2)-24/25-61 

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    See Also:
       Toxicological Abbreviations