| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 201431 | Fluid Phase Equilibria | 2013 | 6 Pages |
•The capillary constant of C2H6–CH4 mixture has been measured from 93.15 to 283.15 K.•The surface tension σ has been calculated.•Obtained data have been approximated by analytical dependences.•In the framework of models of an ideal and a regular solution σ has been calculated.
The paper presents the results of measuring the capillary constant a2 and calculating the surface tension σ of ethane–methane solutions. Experimental data have been obtained in the temperature range from 93.15 to 283.15 K at pressures from that of saturated vapors of pure ethane to 4 MPa. Equations that approximate the temperature, pressure and concentration dependences of a2 and σ are suggested. The concentration dependence of the surface tension is described in the framework of models of an ideal and a regular solution. The relative adsorption has been calculated.
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