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2-NAPHTHOL ICSC: 0719
Date of Peer Review: April 2005

beta-Naphthol
2-Hydroxynaphthalene
2-Naphthalenol
Isonaphthol
CAS # 135-19-3 C10H8O
RTECS # QL2975000 Molecular mass: 144.2
UN # 3077
EC # 604-007-00-5
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE
PREVENT DISPERSION OF DUST!

Inhalation Cough. Sore throat.
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.
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 take to a doctor.
Ingestion Abdominal pain. Nausea. Vomiting. Diarrhoea.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P2 filter respirator for harmful particles. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment.
EU Classification
Symbol: Xn, N
R: 20/22-50
S: (2-)-24/25-61
UN Classification
UN Hazard Class: 9
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-90GM7-III
NFPA Code: H; F1; R0
Store in an area without drain or sewer access.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
2-NAPHTHOL ICSC: 0719
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.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK 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 , resulting in kidney impairment, anaemia and lens opacities.
PHYSICAL PROPERTIES
Boiling point: 285C
Melting point: 122C
Density: 1.28 g/cm
Solubility in water, g/100 ml at 25C: 0.074
Vapour pressure, Pa at 25C: 2
Relative vapour density (air = 1): 5
Flash point: 153C
Auto-ignition temperature: 550C
Octanol/water partition coefficient as log Pow: 2.7
ENVIRONMENTAL DATA
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 tempature 135-150C.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999