University Chemistry ›› 2015, Vol. 30 ›› Issue (2): 74-77.doi: 10.3866/pku.DXHX20150274

• Self Studies • Previous Articles     Next Articles

The Interfacial Tension of Oil/Water Interface and the Effect of Salt on Spreading of Oil over Water Surface

Sun Yan, Pang Xinjing, Zhang Shuyong   

  1. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
  • Published:2015-04-25

Abstract:

The properties of the liquid/liquid interface have great effects on the physicochemical processes. In this paper, the influential factors on the relative values of the oil/water, oil/gas and water/gas interfacial tensions and their influence on the shape of an oil drop floating on water surface were discussed. The effect of inorganic salt on the three interfacial tensions was studied to provide guidelines as verified experimentally.

Key words: Oil/Water interface, Interfacial tension, Antonoff rule, Good-Girifalco equation, Inorganic salt