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HydrogenH2

CAS-No.:
1333-74-0
UN-No.:
1049
EINECS No.:
215-606-7
Kemler Code:
23
Hazard signs
GHS02
GHS04

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

Occupational exposure limit
Workplace exposure limits (UK)
  • STEL (ppm) C 1.4
  • H: 220
    Extremely flammable gas
  • H: 280
    Contains gas under pressure; may explode if heated

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

  • Melting point:
    -259.2 °C
  • Boiling Point:
    -253 °C
  • Density (at 20 °C):
    0,0000899 (0°C) g/cm3
  • Ionization:
    15.42593 ± 0.00005 eV
  • Ignition Temperature:
    560 °C
  • Lower Explosive Limit:
    4 Vol.-%
  • Upper Explosive Limit:
    77 Vol.-%
  •  

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

Also known as:
  • hydrogen(1+)

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