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!
Cough. Sore throat.
Use local exhaust or breathing protection.
Fresh air, rest.
Rinse and then wash skin with water and soap.
Wear safety spectacles.
Rinse with plenty of water for several minutes (remove contact lenses if easily possible).
Sore throat. Abdominal pain.
Do not eat, drink, or smoke during work.
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
Dry. Well closed. Separated from chlorine.
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
Ingestion in large amounts may cause effects on the kidneys. This may result in tissue lesions.
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