Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
216074 | The Journal of Chemical Thermodynamics | 2012 | 7 Pages |
The liquid–liquid coexistence curves of (dimethyl adipate + n-octane) and (dimethyl adipate + n-nonane) have been determined within about 10 K from the critical temperatures, from which the critical amplitudes and the critical exponents are deduced. The critical exponents corresponding to the coexistence curve β are consistent with the 3D-Ising values. The experimental results have been analyzed to determine Wegner-correction terms and to discuss the asymmetric behaviour of the diameters of the coexistence curves by the complete scaling theory. Molar mass-dependences of the critical amplitude and the critical volume fraction have been shown to be consistent with the theoretical prediction.
► Coexistence curves of (dimethyl adipate +n-octane or +n-nonane) were measured. ► The critical exponent β was found to be consistent with the 3D-Ising value. ► The asymmetry of the coexistence curves was discussed. ► The molar mass-dependence of the critical amplitude was investigated.