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, foam, powder, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.
Use local exhaust or breathing protection.
Fresh air, rest.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
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.
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. Carefully collect remainder. Then store and dispose of according to local regulations.
According to UN GHS Criteria
No hazard classification according to GHS criteria
Transportation UN Classification
Separated from strong oxidants.
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE CRYSTALLINE POWDER.
Physical dangers Dust explosion possible if in powder or granular form, mixed with air.
Chemical dangers Reacts violently with strong oxidants. This generates fire and explosion hazard.
Formula: C8H6O4 / C6H4(COOH)2
Molecular mass: 166.1
Sublimation point: 402°C Relative density (water = 1): 1.51 Solubility in water, g/100ml at 20°C: 0.28 Vapour pressure, Pa at 20°C: <1 Flash point: 260°C Auto-ignition temperature: 496°C Octanol/water partition coefficient as log Pow: 1.96 Solubility in water, mg/l at 20°C: 15 (practically insoluble)
EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion.
Effects of short-term exposure May cause mechanical irritation to the eyes and respiratory tract.
Inhalation risk Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed.
Effects of long-term or repeated exposure
OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 mg/m3, as TWA. MAK: (inhalable fraction): 5 mg/m3; peak limitation category: I(2); pregnancy risk group: C
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