Non-photochemical laser-induced nucleation of supercooled glacial acetic acid

Martin R. Ward, Stephanie McHugh, Andrew J. Alexander

Research output: Contribution to journalArticlepeer-review

Abstract

Non-photochemical laser-induced nucleation (NPLIN) of glacial acetic acid (GAA) is demonstrated. The fraction of samples nucleated depends linearly on peak laser power density at low powers (< 100 MW cm(-2)) with a threshold of (9.0 +/- 4.2) MW cm(-2); at higher laser powers the fraction reaches a plateau of 0.75 +/- 0.24 (2 sigma uncertainties). A simple model based on polarizability of pre-nucleating clusters gives a value of the solid-liquid interfacial tension gamma(SL) = 15.5 mJ m (2). It is hoped that the results will stimulate new developments in experimental and theoretical studies of cluster structure and nucleation in liquids.

Original languageEnglish
Pages (from-to)90-93
Number of pages4
JournalPhysical Chemistry Chemical Physics
Volume14
Issue number1
DOIs
Publication statusPublished - 2012

Keywords

  • AQUEOUS UREA SOLUTIONS
  • CRYSTAL NUCLEATION
  • POLARIZATION DEPENDENCE
  • MOLECULAR-DYNAMICS
  • CRYSTALLIZATION
  • IRRADIATION
  • NUCLEUS
  • GLYCINE
  • VIEW

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