Small-Scale and Low-Cost Electrodes for "Standard" Reduction Potential Measurements.

• Autores: Per-Odd Eggen, Lise Kvittingen, Truls Gronneberg
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 84, Nº 4, 2007, págs. 671-673
• Idioma: inglés
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• Resumen

  • This article describes how to construct three simple and inexpensive electrodes: a hydrogen, a chlorine, and a copper electrode. The copper electrode is applied as a reference electrode for the reduction potential measurements and is calibrated against the "standard" hydrogen electrode. These small-scale (microchemistry) electrodes can be used in secondary school courses as well as a first-year course at college or university.