The Remarkable Chemistry of Potassium Dioxide(1-): Two Microscale Classroom Demonstrations

Autor/inn/en	Allen, Andrew; Anderson, Michael; Mattson, Bruce
Titel	The Remarkable Chemistry of Potassium Dioxide(1-): Two Microscale Classroom Demonstrations
Quelle	In: Journal of Chemical Education, 86 (2009) 11, S.1286-1289 (4 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
Schlagwörter	Demonstrations (Educational); Chemistry; Science Instruction; Scientific Principles; College Science; Science Experiments + Suchen Sie Ihr Suchwort? Demonstrationsexperiment; Demonstrationsmodell; Demonstrationsunterricht; Chemie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht
Abstract	Potassium dioxide, KO[subscript 2], (potassium superoxide) is an important compound owing to its ability to react with carbon dioxide to produce oxygen. This unique ability is employed to design rebreathing devices for submarines, space vehicles, and space suits. "Rebreathers" for firefighters and miners have also been designed using potassium superoxide. We provide instructions for performing two classroom demonstrations: (a) The demonstration of potassium superoxide's ability to react nearly quantitatively with carbon dioxide, and (b) the paramagnetism of potassium superoxide. Five confirmatory experiments are described in support of the first demonstration. (Contains 2 figures and 12 notes.) (As Provided).
Anmerkungen	Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail: jchemed@egpp.com; Web site: http://www.jce.divched.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10