ABC of Safety in the Biological Sciences - Silica

 

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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