A laboratory experiment for extraction and purification of acetylsalicylic acid from commercial aspirins and its reaction with Fe(III) and Cu(II) solutions. The complexation reactions are easily observed thanks to the intense color variations, nevertheless the identity of the extracted and synthesized compound has been verified using thin-layer chromatography, UV-vis, fluorescence and infra-red spectroscopy, and mass spectrometry. This experiment demonstrates that varying the ligand and the transition metal can give rise to different structures, and hence different optic properties.

Aspirin and Its Colored Complexes: How This Drug Reacts with Metal Ions

Volpi Giorgio;Francesca Turco;Giuseppina Cerrato
2018

Abstract

A laboratory experiment for extraction and purification of acetylsalicylic acid from commercial aspirins and its reaction with Fe(III) and Cu(II) solutions. The complexation reactions are easily observed thanks to the intense color variations, nevertheless the identity of the extracted and synthesized compound has been verified using thin-layer chromatography, UV-vis, fluorescence and infra-red spectroscopy, and mass spectrometry. This experiment demonstrates that varying the ligand and the transition metal can give rise to different structures, and hence different optic properties.
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https://www.raci.org.au/document/item/3153
First-Year Undergraduate, Second-Year Undergraduate, Demonstrations, Interdisciplinary / Multidisciplinary, Inorganic Chemistry, Hands-On Learning / Manipulatives, Crystal Field / Ligand Field Theory, Dyes / Pigments, Organometallics.
Volpi Giorgio, Francesca Turco, Giuseppina Cerrato
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1666368
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