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Substance Name: Gases (petroleum), hydrogen absorber off
RN: 68477-96-3


  • TSCA Definition 2018: A complex combination obtained by absorbing hydrogen from a hydrogen rich stream. It consists of hydrogen, carbon monoxide, nitrogen, and methane with small amounts of C2 hydrocarbons.

Molecular Formula

  • Unspecified

Classification Code

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Links to Resources

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Names and Synonyms


  • EINECS 270-779-1
  • HRI off-gas

Systematic Names

  • Gases (petroleum), hydrogen absorber off
  • Gases, petroleum, hydrogen absorber off

Registry Numbers

CAS Registry Number

  • 68477-96-3

System Generated Number

  • 0068477963