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Hydrogen selenide

CAS 7783-07-5 · H2Se
Hazard class
Danger — Flammable, Gas under pressure, Toxic, Irritant / harmful, Health hazard, Environmental hazard
Pictograms
FlammableGas under pressureToxicIrritant / harmfulHealth hazardEnvironmental hazard
H-statements
  • H220 Extremely flammable gas
  • H280 Contains gas under pressure; may explode if heated
  • H330 Fatal if inhaled
  • H400 Very toxic to aquatic life
  • H410 Very toxic to aquatic life with long lasting effects
  • H319 Causes serious eye irritation
  • H370 Causes damage to organs
  • H372 Causes damage to organs through prolonged or repeated exposure
  • H373 May cause damage to organs through prolonged or repeated exposure
Workplace exposure limits
NIOSH REL TWA 0.05 ppm (0.2 mg/m3)
OSHA PEL TWA 0.05 ppm (0.2 mg/m3) None available
IDLH 1 ppm
Occupational exposure limits — NIOSH Pocket Guide.
Molecular weight
80.99 g/mol
Data source
Aggregated classification PubChem
GHS aggregated by PubChem from registrant and agency submissions; not individually harmonised. Always verify against the official SDS before compliance use.
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