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NAPHTHENIC ACIDSICSC: 1654
June 2006
CAS #: 1338-24-5Carboxylic-acids, -naphthenic-
Acidic petroleum fraction
EINECS #: 215-662-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.    NO open flames.    Use special powder, carbon dioxide, foam. Water may be ineffective.  In case of fire: keep drums, etc., cool by spraying with water. 

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
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 CLASSIFICATION & 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. 

According to UN GHS Criteria

excl mark;warncancer;health hazenviro;aqua
DANGER
Harmful if swallowed
Causes damage to the nervous system through prolonged or repeated exposure if swallowed
Toxic to aquatic life 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants and metals. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 
PACKAGING
 
NAPHTHENIC ACIDS ICSC: 1654
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
 

Physical dangers
 

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

Formula: CnH2n-1COOH
Molecular mass: 180 - 350
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) 


EXPOSURE & HEALTH EFFECTS

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

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

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 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. 


Occupational exposure limits
 

ENVIRONMENT
The substance is toxic to aquatic organisms. 

NOTES
Composition may change physical and toxicological properties. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations