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Document ID (ISN)49474
CIS number 88-412
ISBN(s) 0-660-12625-7; 0-660-92197-9
Year 1987
Convention or series no. CCOHS/CCHST Data Sheet No.27
Title Silicas, non-crystalline
Original title Silices non cristallines [in French]
Bibliographic information Canadian Centre for Occupational Health and Safety, 250 Main St. East, Hamilton, Ontario L8N 1H6, Canada, 1987. 10p. 21 ref.
Abstract Chemical safety information sheet. Covers: diatomaceous earth, silica gel, precipitated, fused and fumed silica. Toxicity: lung scarring after long-term exposure (fibrosis). Exposure limits (ACGIH, 1986-1987): diatomaceous earth (uncalcined), precipitated silica and silica gel containing <1% quartz, TLV = 10mg/m3 (total dust); fused silica, TLV = 0.1mg/m3 as respirable dust; for calcined diatomaceous earth the individual exposure limits for crystalline silicas (quartz, crystobalite, tridymite) should be used.
Descriptors (primary) silica gel; diatomaceous earth; silicates; Canada; silica; threshold limit values
Descriptors (secondary) fire hazards; toxicology; explosion hazards; data sheet; first aid; personal protective equipment; health hazards; waste disposal
Document type B - Chemical safety information sheets
Subject(s) Toxic and dangerous substances
Broad subject area(s)
Browse category(ies) Inorganic substances
Occupational exposure limits
Silicon compounds