Combustible. Gives off irritating or toxic fumes (or gases) in a fire. 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, foam, carbon dioxide. In case of fire: keep cylinder cool by spraying with water.
PREVENT DISPERSION OF DUST!
Avoid inhalation of dust.
Fresh air, rest.
Rinse and then wash skin with water and soap.
Wear safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Do not eat, drink, or smoke during work. Wash hands before eating.
Refer for medical attention .
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.
According to UN GHS Criteria
Transportation UN Classification
UN Hazard Class: 6.1; UN Pack Group: III
Separated from strong oxidants and food and feedstuffs.
Do not transport with food and feedstuffs.
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-WHITE CRYSTALLINE POWDER WITH CHARACTERISTIC ODOUR.
Physical dangers Dust explosion possible if in powder or granular form, mixed with air.
Chemical dangers Reacts with strong oxidants. Decomposes on heating. This produces toxic gases including hydrogen cyanide. On combustion, forms nitrogen oxides.
Molecular mass: 128.14
Sublimation point: >162°C Density: 1.3 g/cm³ Solubility in water, g/100ml at 20°C: 0.07 Vapour pressure: 1.33 Pa Relative vapour density (air = 1): 4.42 Flash point: >150°C Octanol/water partition coefficient as log Pow: 0.39
EXPOSURE & HEALTH EFFECTS
Routes of exposure
Effects of short-term exposure The substance is irritating to the eyes.
Inhalation risk Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.
Effects of long-term or repeated exposure
OCCUPATIONAL EXPOSURE LIMITS
TLV: 5 mg/m3, as TWA
Health effects of exposure to the substance have not been investigated adequately.
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