Soluble-insoluble transition in binary heterogeneous nucleation.


In this Letter, we report the first experimental study of binary heterogeneous gas-liquid nucleation. Onset activities were obtained for nucleation of various n-propanol-water vapor mixtures on 6.9 nm NaCl particles soluble in water and practically insoluble in n-propanol. The Fletcher theory of vapor nucleation on insoluble particles provided a reasonable approximation for n-propanol rich mixtures only, whereas the Köhler theory of activation of soluble particles worked only for water rich mixtures. A new theory was formulated providing a satisfactory description of the transition from activation of soluble particles to vapor nucleation on insoluble particles.

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@article{Petersen2001SolubleinsolubleTI, title={Soluble-insoluble transition in binary heterogeneous nucleation.}, author={Dick Petersen and Ronald Ortner and Aron E Vrtala and Paul E. Wagner and Markku Kulmala and Ari Laaksonen}, journal={Physical review letters}, year={2001}, volume={87 22}, pages={225703} }