A Qualitative Analysis of Sulfite Ions in White Wine Based on Visible Color Changes

• Natalie Chiaverini ^[1] ; Tom Mortier ^[1]
  1. [1] University Colleges Leuven-Limburg

     University Colleges Leuven-Limburg

     Arrondissement Leuven, Bélgica

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 92, Nº 5, 2015, págs. 877-880
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • In this demonstration, we show a qualitative analysis of sulfite ions in white wine with strontium ions. In base solution, a white precipitation occurs from strontium sulfite that disappears after a strong acid is added. This demonstration nicely illustrates chemical equilibrium in a school chemistry experiment.