Aluminum Metal Digestion as a Demonstration of an Oscillating Voltage Reaction: An Application Beyond the Textbook

Autor:	Monty L. Fetterolf, Cathy L. Cobb, Wilson Haddock
Rok vydání:	2019
Předmět:	Materials science chemistry.chemical_element General Chemistry Electrochemistry Chloride Rod Education chemistry.chemical_compound chemistry Chemical engineering Nitric acid Aluminium Voltmeter General chemistry medicine Voltage medicine.drug
Zdroj:	Journal of Chemical Education. 97:162-165
ISSN:	1938-1328 0021-9584
DOI:	10.1021/acs.jchemed.9b00456
Popis:	The oscillating open-circuit voltage generated by the digestion of aluminum rods, catalyzed by copper(II) chloride in 3 M nitric acid at 90 °C, is presented as a demonstration appropriate for a general chemistry or advanced laboratory. This demonstration encourages discussion of the possible kinetic mechanism as well as the general electrochemical half-reactions involved and the limited conditions under which oscillations occur. The objective is to provide general chemistry students with an interesting reaction beyond typical kinetics or electrochemistry. Apart from 1100-alloy aluminum rods and a recording voltmeter, the demonstration uses standard lab equipment, and the materials for the solutions are those typically found in a general lab setting.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5969b9a2f7518dcc28ef8e04450c23b9 https://doi.org/10.1021/acs.jchemed.9b00456 Zobrazit plný text záznamu