Page 311 - Gas Adsorption Equilibria

6. Impedance Spectroscopy 297

As an example in Figure 6.6 we present data of the static
dielectric permittivity of molecular sieve MSKE 154 including nitrogen
as an adsorbate taken at T = 294.7 K for gas pressures up to 10
MPa, [6.18]. These data can easily be correlated by a dielectric (adsorption)
isotherm of Langmuirian type

or likewise in the linearized form

as in Fig. 6.6. The parameters are: A = 0.1 GPa, B = 12.8 for pressures given
in The parameter refers to the
permittivity of the (empty) molecular sieve in vacuum.

Figure 6.6. Dielectric isotherm of nitrogen adsorbed in molecular sieve KE 154 at
T = 294.7 K for pressures up to 10 MPa, [6.18].