IPCS INCHEM Home
COBALT NAPHTHENATEICSC: 1093
Naphthenic acid, cobalt salt
Naftolite
December 2000
CAS #: 61789-51-3
UN #: 2001
EC Number: 263-064-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Gives off irritating or toxic fumes (or gases) in a fire. See Notes.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.  Use water spray, powder.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT DISPERSION OF DUST! STRICT HYGIENE!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Shortness of breath. Sore throat. Wheezing.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  Wear 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 refer for medical attention. 
Ingestion Diarrhoea. Weakness.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Remove all ignition sources. Sweep spilled substance into sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 4.1; UN Pack Group: III 

STORAGE
Separated from strong oxidants. Well closed. 
PACKAGING
 
COBALT NAPHTHENATE ICSC: 1093
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
BROWN AMORPHOUS OR BLUISH-RED SOLID. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Upon heating, toxic fumes are formed. Decomposes on heating. This produces toxic fumes. Reacts with strong oxidants. 

Formula: Co(C11H10O2)2
Molecular mass: 407
Melting point: 140°C
Density: 0.9 g/cm³
Solubility in water: none
Auto-ignition temperature: 276°C  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. 

Effects of short-term exposure
The aerosol is irritating to the eyes and respiratory tract. 

Inhalation risk
 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
Cobalt naphthenate is used as a solution usually in mineral oils and spirits: 6% (cobalt) solution; boiling point: >150°C; specific gravity (water=1): 0.94-0.98; vapour density (air=1): 4.9.
Health effects of exposure to the substance have not been investigated adequately. 

ADDITIONAL INFORMATION
  EC Classification
 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations