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

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

Research output: Contribution to journalArticle

24 Citations (Scopus)

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 (2σ uncertainties). A simple model based on polarizability of pre-nucleating clusters gives a value of the solid-liquid interfacial tension γ(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)90-3
Number of pages4
JournalPhysical Chemistry Chemical Physics
Volume14
Issue number1
DOIs
Publication statusPublished - 7 Jan 2012
Externally publishedYes

Keywords

  • Non-photochemical laser-induced nucleation
  • NPLIN
  • glacial acetic acid
  • GAA

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