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NAPHTHENIC ACIDS
ICSC: 1654
Peer-Review Status: 04.06.2006 Validated
Carboxylic-acids, -naphthenic-
Acidic petroleum fraction 
CAS #: 1338-24-5 RTECS #: QK8750000
EINECS #: 215-662-8
    Formula: CnH2n-1COOH
Molecular mass: 180 - 350

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use special powder, carbon dioxide, foam. Water may be ineffective. 
EXPLOSION     In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE      
Inhalation Cough. Dizziness.  Use local exhaust.  Fresh air, rest. 
Skin Redness. Pain.  Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Nausea. Vomiting. Diarrhoea. Drowsiness.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in covered containers as far as possible.   
EC Classification
 
UN Classification
 
GHS Classification
Signal: Danger
Harmful if swallowed
Causes damage to nervous system through prolonged or repeated exposure if if swallowed
Toxic to aquatic life 
excl mark;warncancer;health hazenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F1; R0.  Separated from strong oxidants and metals. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 

IMPORTANT DATA
Physical State; Appearance
 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces irritating fumes. Attacks metals. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of short-term exposure
The substance is irritating to the eyes and skin. The substance may cause effects on the central nervous system. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the liver and central nervous system. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 140-370°C
Melting point: -35 to 2°C
Relative density (water = 1): 0.982 (liquid)
Solubility in water: poor
Flash point: 149 °C o.c.
Octanol/water partition coefficient as log Pow: 5->6 (calculated) 
The substance is toxic to aquatic organisms. 

NOTES
Composition may change physical and toxicological properties.
Card has been partially updated in March 2008: see Environmental Data, Storage. 

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