You are here: Home :: Area NEM :: Chemistry :: Physical chemistry

Inez Weidinger, Juliane Klein, Peter Stöckel, E. Biller, Helmut Baumgärtel, Thomas Leisner

The Freezing of n-Alkanes C₁₅H₃₂ and C₁₇H₃₆
An Unsual Mechanism of Homogeneous Nucleation

The nucleation kinetics of n-alkane droplets with carbon numbers of 15 and 17 was observed in an electrodynamic balance. Changes in the elastic light scattering pattern of the single levitated microdroplets indicate the phase transition liquid to solid. Measurements of the nucleation rates gave information on the dynamics of the nucleation process and allow to propose a new mechanism for the nucleation. Large induction times observed for the C₁₅H₃₂ droplets indicate that the nucleation starts after a solid layer has been built up at the surface.

Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0942-9352
Volume: 217, 12/2003
Pages: 1597

Journal homepage (external site)

Show all available items of this journal

 

Area NEM