Gravimetric Measurement of the Molecular Area of Some Adsorbed Gases

  • E. Robens
  • G. Sandstede
  • G. Walter
Conference paper


A modified Gravimat, which is a sorption apparatus that includes the Gast microbalance, has been used to measure sorption isotherms of nitrogen, krypton, methane, propane, and 2,2-dimethylpropane on glass, gold, aluminum, and polytetrafluoroethylene (PTFE). Cross-sectional areas of the adsorbates derived from the Isotherms on the basis of the BET theory are compared for the different adsorbents.


Sorption Isotherm Grain Size Analysis Inlet Valve Molecular Area Main Valve 
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Copyright information

© Plenum Press, New York 1971

Authors and Affiliations

  • E. Robens
    • 1
  • G. Sandstede
    • 1
  • G. Walter
    • 1
  1. 1.Battelle-Institute e. V.Frankfurt (Main)Germany

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