International Chemical Safety Cards

2-NAPHTHOL ICSC: 0719
2-NAPHTHOL
2-Hydroxynaphthalene
2-Naphthalenol
Isonaphthol
C10H8O
Molecular mass: 144.2
CAS # 135-19-3
RTECS # QL2975000
ICSC # 0719
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.
Breathing protection.
Fresh air, rest.
SKIN Redness. Pain.
Protective gloves. Protective clothing.
Rinse and then wash skin with water and soap.
EYES Redness. Pain.
Safety goggles, face shield, 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. Convulsions. Diarrhoea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment (extra personal protection: P2 filter respirator for harmful particles).


Xn symbol
R: 20/22
S: (2-)24/25
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0719 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

2-NAPHTHOL ICSC: 0719

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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 (OELs):
TLV not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes and the skin. Exposure by ingestion could cause nephritis, lens opacity, circulatory collapse, hemolytic anemia and death.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the kidneys.
PHYSICAL
PROPERTIES
 Boiling point: 285°C
Melting point: 121-123°C
Relative density (water = 1): 1.22
Solubility in water, g/100 ml at 25°C: 0.074
Vapour pressure, Pa at 145°C: 670		 Relative vapour density (air = 1): 5
Flash point: 153°C
Auto-ignition temperature: 550°C
Octanol/water partition coefficient as log Pow: 2.7
ENVIRONMENTAL
DATA
 The substance is toxic to aquatic organisms.
N O T E S
C.I. Azoic Coupling Component 1, C.I. Developer 5, C.I. 37500 are trade names.
NFPA Code: H; F1; R0
ADDITIONAL INFORMATION


ICSC: 0719 2-NAPHTHOL
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or 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. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.