Study of Octadecane and Docosane droplets melting

The alkanes melting (n-Octadecane, n-Docosane) is studied experimentally. droplets size and shape histories are analyzed compared with the characteristics of n-alkanes phase transition solid-liquid. It found that droplet equivalent diameter increases significantly due to thermal expansion. At same time its evolves continuously: initially elongated becomes almost spherical then elongates again. aspect ratio non-monotonic change correlates surface tension temperature dependence.