A device for studying adsorption processes in metals and alloys is describe
d. The big-drop technique employed in the device allows for studying the ad
sorption kinetics of a surface-active component on a liquid binary alloy su
rface by the time changes of the surface tension of a freshly formed surfac
e. The lead adsorption on the surface of a series of tin-lead alloys was st
udied at a temperature of 520 K.