Mass transfer during drop formation in the presence of interfacial turbulence in the liquid-liquid systems

The mass transfer rate during the drop formation in the presence of interfacial turbulence was investigated. The interfacial turbulence increases the mass transfer rate. The empirical equation was obtained for the enhancement factor of the mass transfer rate which is defined as the ratio of the overall mass transfer coefficient in the presence of interfacial turbulence to the estimated value based on the penetration theory. The critical Marangoni numbers, that is the Marangoni numbers when the interfacial turbulence starts to generate, were also measured in 15 systems consisting of five solvents and three solutes. The empirical correlation was obtained of the critical Marangoni number and the product of the distribution coefficient by the ratio of diffusion coefficients of solute in two phases.