ABC of Safety in the Biological Sciences
SILICA (Si02)
SYNONYMS
Talc, silicon dioxide.
GENERAL PRECAUTIONS
Avoid inhalation.
Wash hands thoroughly after handling.
CHARACTERISTICS
Off white, fine powder. No odour.
HEALTH HAZARD DATA
Silica is nonharmful to eyes, skin and when ingested but
inhalation of the powder can cause coughing, choking and
respiratory discomfort. Permanent lung damage can result from
prolonged exposure leading to silicosis and death.
TREATMENTS
Skin wash the affected area with soap or mild detergent and
water until all evidence of the chemical has been removed.
Eyes immediately wash the affected eye with large amounts of
water until all evidence of the chemical has been removed
(approximately 15 minutes).
Inhalation remove from the area of exposure to fresh air. If
breathing has ceased apply artificial respiration. Keep warm and
allow to rest. If irritation or discomfort persist or develops
seek medical attention.
Ingestion wash out the mouth thoroughly with water and give
water to drink.
INCOMPATIBILITY
None known.
STORAGE
Store in a cool, dry atmosphere.
HANDLING
Wear protective clothing. A long sleeved laboratory coat or
gown, rubber gloves, safety goggles and a face mask as a minimum
standard.
DISPOSAL
WEAR:
Heavy gloves and safety glasses.
The waste may be used as fill in reclaiming low areas or may be
dumped in a landfill.
ENVIRONMENT:
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