The mass transfer coefficients between fine particles and liquids were measured in an agitated vessel. As the particle’s diameter decreased, the values of mass transfer coefficient deviated below the pre-vious correlation for large particles and approached the value of the theoretical molecular diffusion theory. The mass transfer with fine particles in the turbulent agitation was analysed with the conventional concept of a specific power group from the Kolmogorov theory. An approximate solution for the mass transfer in the wide range of experimental variables was also obtained by using the Beek-Bakker model with which the experimental data were in good agreement.