A scaled nucleation model for ideal binary systems

A scaled binary nucleation model for ideal systems is presented and used to analyze the experimental hexanol-ethanol data of Strey and Viisanen at 260 K. A major feature of the scaled nucleation rate is the rate prefactor, J(0), which is only weakly T (and composition) dependent and here is approximated by a constant. The model gives surprisingly good agreement with the experimental activity plot, and the scaled model method for finding the critical cluster composition (with binary surface tension composition variation) provides a better fit to the experimental data than the revised classical model. (C) 1999 Elsevier Science B.V. All rights reserved.