Description:
<jats:p>The two-scale-factor universality hypothesis of critical phenomena is used to estimate the liquid/liquid interfacial tension near the critical point of binary alloys with miscibility gap. Experimental results of measurements of the correlation length of local concentration fluctuations (data for the systems cadmium/gallium and sodium/lithium taken from the literature), and experimental results of measurements of the temperature dependence of the molar heat capacity at constant pressure (data for the system bismuth/gallium taken from the literature) are used for this illustration.</jats:p>