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NIOSH

HYDROXY-2-NAPHTHOIC ACID

ICSC: 1759
3-Hydroxy-2-naphthalenecarboxylic acid
3-Hydroxy-2-naphthoic acid
beta-Hydroxynaphthoic acid
C11H8O3/HOC10H6COOH
Molecular mass: 188.2
ICSC # 1759		CAS # 92-70-6
RTECS # QL1755000
May 05, 2010 Validated
Ju, 010 IPCS checked incl GHS

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Water spray. Foam. Dry powder.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

•INHALATION Sore throat. Cough.
Local exhaust or breathing protection.
Fresh air, rest.
•SKIN Redness. Pain. in analogy with naphtoic acid ICSC 1654.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
•EYES Redness. Pain. Burns
Safety goggles
Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention.
•INGESTION Sore throat. Nausea. Vomiting. Diarrhoea. 20117000
Do not eat, drink, or smoke during work.
Rinse mouth. Give one or two glasses of water to drink. Seek medical attention if you feel unwell

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment.
Separated from strong oxidants. Store in an area without drain or sewer access.
Signal: Danger
Excl mark
Harmful if swallowed
Causes serious eye damage
Harmful to aquatic life
ICSC: 1759 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

HYDROXY-2-NAPHTHOIC ACID

ICSC: 1759

I

M

P

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T

A

N

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D

A

T

A

PHYSICAL STATE; APPEARANCE:
YELLOW CRYSTALS

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing irritating fumes. Reacts with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body through the skin by ingestion.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration of this substance in the air is reached.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the skin and is severely irritating to the eyes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the kidneys , liver and endocrine system eated inhalation, in rats - poorly documented study; ocrine system> SIDS

PHYSICAL
PROPERTIES

Melting point: 220°C
Solubility in water, g/100 ml: 0.047
(very poor)
Vapour pressure, Pa at 25°C: negligible
Flash point: >150
°C c.c.
Auto-ignition temperature: > 400°C
Octanol/water partition coefficient as log Pow: 3.4 - 3.59

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

Health effects of exposure to the substance have not been investigated adequately.

ADDITIONAL INFORMATION



ICSC: 1759 HYDROXY-2-NAPHTHOIC ACID
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, 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. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values
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