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Hydrogen sulphideH2S

CAS-No.:
7783-06-4
UN-No.:
1053
EC-No.:
231-977-3
Hazard identification number:
263
Hazard signs
GHS02
GHS04
GHS06
GHS09

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

Occupational exposure limit
ACGIH (US)
  • TWA (ppm) 1
  • TWA (mg/m3) 1,4
  • STEL (ppm) 5
  • STEL (mg/m3) 7
NIOSH (REL) (US)
  • STEL (ppm) C 10 (10min)
  • STEL (mg/m3) C 15 (10min)
NIOSH (US)
  • IDLH (ppm) 100
OSHA (PEL) (US)
  • STEL (mg/m3) C 20
  • STEL (mg/m3) C 50 (10min)
  • H: 220
    Extremely flammable gas
  • H: 280
    Contains gas under pressure; may explode if heated
  • H: 330
    Fatal if inhaled.
  • H: 335
    May cause respiratory irritation
  • H: 400
    Very toxic to aquatic life

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

  • Melting point:
    -85.7 °C
  • Boiling Point:
    -60.2 °C
  • Density (at 20 °C, if not notified otherwise):
    0,0015359 (0°C) g/cm3
  • Ionization:
    10.457 ± 0.012 eV
  • Ignition Temperature:
    270 °C
  • Vapour Pressure (at 20 °C, if not notified otherwise):
    18190 hPa
  • Lower Explosive Limit:
    3.9 Vol.-%
  • Upper Explosive Limit:
    50.2 Vol.-%

*Source: GESTIS Substance Database, https://gestis-database.dguv.de

Also known as:
  • Dihydrogen sulfide
  • Hydrogen sulfide
  • Hydrosulfuric acid
  • Sewer gas
  • sulfane
  • Sulfuretted hydrogen

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Suitable products for Hydrogen sulphide H2S

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