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CYANURIC ACIDICSC: 1313
October 2006
CAS #: 108-80-5Isocyanuric acid
1,3,5-Triazine-2,4,6(1H,3H,5H) - trione
sym-Triazine-2,4,6-triol
EINECS #: 203-618-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Gives off irritating or toxic fumes (or gases) in a fire.        Use water spray, alcohol-resistant foam, powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin   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. Abdominal pain.  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. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Dry. Well closed. Separated from chlorine. 
PACKAGING
 
CYANURIC ACID ICSC: 1313
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS WHITE HYGROSCOPIC CRYSTALLINE POWDER. 

Physical dangers
No data. 

Chemical dangers
Decomposes at >320°C. This produces toxic fumes including nitrogen oxides and isocyanic acid. Reacts with chlorine. This generates explosion hazard. 

Formula: C3H3N3O3 / C3N3(OH)3
Molecular mass: 129.1
Decomposes at 320-360°C
Density: 2.5 g/cm³
Solubility in water, g/100ml at 25°C: 0.27
Vapour pressure, Pa at 25°C:
Octanol/water partition coefficient as log Pow: <0.3  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Effects of short-term exposure
The substance is mildly irritating to the eyes. 

Inhalation risk
A harmful 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
Ingestion in large amounts may cause effects on the kidneys. This may result in tissue lesions. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations