PHYSICAL STATE; APPEARANCE:
BLACK POWDER OR SOLID IN VARIOUS FORMS.
PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air.
If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring,
etc.
CHEMICAL DANGERS:
The substance may spontaneously ignite on contact with air. On
combustion, forms toxic carbon monoxide if ventilation is insufficient. The substance is
a strong reducing agent and reacts violently with oxidants such as bromates, chlorates and
nitrates.
OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV not established.
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ROUTES OF EXPOSURE:
INHALATION RISK:
Evaporation at 20°C is negligible; a nuisance-causing concentration of
airborne particles can, however, be reached quickly.
EFFECTS OF SHORT-TERM EXPOSURE:
EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
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