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, powder, foam, carbon dioxide.
PREVENT DISPERSION OF DUST!
Cough. Shortness of breath. Sore throat.
Use ventilation (not if powder).
Fresh air, rest. Refer for medical attention.
Rinse skin with plenty of water or shower. Refer for medical attention .
Wear safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Abdominal pain. Sore throat.
Do not eat, drink, or smoke during work.
Rinse mouth. 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. Wash away remainder with plenty of water.
According to UN GHS Criteria
Transportation UN Classification
Separated from strong oxidants, strong bases, metal nitrates and metals. Dry.
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS CRYSTALS.
Physical dangers Dust explosion possible if in powder or granular form, mixed with air.
Chemical dangers Decomposes above 175°C . The solution in water is a medium strong acid. Reacts with oxidants and bases. Attacks metals.
Formula: C6H8O7 / CH2COOH-C(OH)COOH-CH2COOH
Molecular mass: 192.1
Decomposes at 175°C Melting point: 153°C Solubility in water, g/100ml at 20°C: 59 Flash point: 100°C Explosive limits, vol% in air: 0.28-2.29 Octanol/water partition coefficient as log Pow: -1.7
EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion.
Effects of short-term exposure The substance is irritating to the eyes, skin 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 The substance may have effects on the teeth. This may result in erosion.
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