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2-NAPHTHOL
ICSC: 0719
Peer-Review Status: 20.04.2005 Validated
beta-Naphthol
2-Hydroxynaphthalene
2-Naphthalenol
Isonaphthol 
CAS #: 135-19-3 RTECS #: QL2975000
UN #: 3077
EC #: 604-007-00-5
EINECS #: 205-182-7
    Formula: C10H8O
Molecular mass: 144.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use water spray, powder, foam, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust.   
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
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
PACKAGING & 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.   
EC Classification
Symbol: Xn, N; R: 20/22-50; S: (2)-24/25-61 
UN Classification
UN Hazard Class: 9; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-90GM7-III.
NFPA Code: H; F1; R0. 
Store in an area without drain or sewer access. 

IMPORTANT DATA
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
 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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

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

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

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. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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  
The substance is very toxic to aquatic organisms. 

NOTES
C. I. Azoic Coupling Component 1, C. I. Developer 5 and C. I. 37500 are trade names.
The substance may be transported in molten state at temperature 135-150°C. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations