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Citation: Hu Xue-Zheng, Yu Xue-Jun, Liu Jun-Kang, Vignes-Adler M. Self-Induced Complex Interfacial Instability in the System of 2-Butanol/Water/Nitroethane[J]. Acta Physico-Chimica Sinica, ;1997, 13(05): 395-400. doi: 10.3866/PKU.WHXB19970503 shu

Self-Induced Complex Interfacial Instability in the System of 2-Butanol/Water/Nitroethane

1.
Department of Chemical Engineering,Wuxi University of Light Industry,Wuxi 214036

Received Date: 15 August 1996
Available Online: 15 May 1997

A complex solute Maran ni instability phenomena is observed by analysing the motion of a nitroethane droplet located at the surface of an aqueous solution of 2-butanol. It is shown that the motion in the first five minutes is composed of three successive phases with different dynamic properties-oscillatory, stationary and spiral.
A self-induced complex mechanism is used to explain this phenomena. It is proposed that the basic origin of this instability is the transfer of the surface-active 2-butanol, but this transfer diminishes the subsurface concentration of 2-butanol in the aqueous phase and induces the restoration of the equilibrium of mutual solubility of the two solvents-nitroethane and water, which has a complex effect on this interfacial phenomena.
- Interfacial instability,
- Maran ni effect,
- Interfacial tension gradient,
- 2-butanol;Nitroethane
  ,
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