Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
In case of fire in the surroundings, use appropriate extinguishing media.
PREVENT DISPERSION OF DUST!
Use local exhaust.
Fresh air, rest.
Rinse skin with plenty of water or shower.
Wear safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Give one or two glasses of water to drink.
CLASSIFICATION & LABELLING
Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Then store and dispose of according to local regulations.
According to UN GHS Criteria
Transportation UN Classification
Separated from strong oxidants and strong acids.
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE CRYSTALLINE POWDER.
Physical dangers No data.
Chemical dangers Decomposes on heating. This produces toxic gases including ammonia (see ICSC 0414). Reacts violently with strong oxidants such as ammonium nitrate. This generates fire and explosion hazard. Reacts with acids. This produces toxic gases including hydrogen cyanide. See ICSC 0492.
Formula: NH2(NH)CNHCN / C2H4N4
Molecular mass: 84.1
Melting point: 211°C Density: 1.4 g/cm³ Solubility in water, g/100ml at 25°C: 4.13 Octanol/water partition coefficient as log Pow: -1.5 (estimated)
EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion.
Effects of short-term exposure
Effects of long-term or repeated exposure
OCCUPATIONAL EXPOSURE LIMITS
In solution the substance decomposes above 80°C yielding ammonia (see ICSC 0414).
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