E3S Web of Conferences (Jan 2021)

Experimental study on the evaporating progress of hexane lens on immiscible liquid:Spreading and receding

  • Chen Aiqiang,
  • Yin Jinghong,
  • Wang Huiqin,
  • Liu Bin,
  • Bennacer Rachid

DOI
https://doi.org/10.1051/e3sconf/202132101017
Journal volume & issue
Vol. 321
p. 01017

Abstract

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The change of evaporation liquid on another immiscible liquid has important guiding significance for many applications. In this experiment, the geometric temperature distribution and evaporation rate of n-hexane droplets were observed and recorded by changing the temperature of deionized water. The results show that with the increase of temperature of deionized water-based solution, the maximum diameter of n-hexane droplet spreading after titration increases gradually, while the minimum diameter of n-hexane droplet disappearing decreases gradually. Meanwhile, the evaporation rate of n-hexane droplet is constant during the whole evaporation process. It should also be mentioned that if the base solution is changed from deionized water to a certain concentration of salt solution, the maximum diameter of n-hexane droplet spreading will be reduced, and the evaporation intensity will be relatively reduced. These experimental results will give us a better understanding of the mechanism and characteristics of droplet evaporation.

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