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PHTHALIC ACIDICSC: 0768
October 2006
CAS #: 88-99-31,2-Benzenedicarboxylic acid
ortho-Phthalic acid
EINECS #: 201-873-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  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, alcohol-resistant foam, carbon dioxide.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat.  Use local exhaust.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety spectacles.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). 
Ingestion Sore throat.  Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. 

According to UN GHS Criteria

excl mark;warn
WARNING
May be harmful if swallowed
Causes skin irritation
Causes serious eye irritation 

Transportation
UN Classification
 

STORAGE
 
PACKAGING
 
PHTHALIC ACID ICSC: 0768
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
CRYSTALLINE POWDER. 

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

Chemical dangers
The solution in water is a weak acid. 

Formula: C8H6O4 / C6H4(COOH)2
Molecular mass: 166.1
Decomposes at 191°C
Relative density (water = 1): 1.6
Solubility in water, g/100ml at 25°C: 0.625 (poor)
Relative vapour density (air = 1): 5.7
Flash point: 168°C c.c.
Octanol/water partition coefficient as log Pow: 0.73  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

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

Inhalation risk
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations