Recycling of Waste Acetone by Fractional Distillation

Autor/inn/en	Weires, Nicholas A.; Johnston, Aubrey; Warner, Don L.; McCormick, Michael M.; Hammond, Karen; McDougal, Owen M.
Titel	Recycling of Waste Acetone by Fractional Distillation
Quelle	In: Journal of Chemical Education, 88 (2011) 12, S.1724-1726 (3 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/ed2001158
Schlagwörter	Wastes; Organic Chemistry; Recycling; Science Instruction; Undergraduate Study; College Science; Science Experiments; Scientific Concepts; Conservation (Environment) + Suchen Sie Ihr Suchwort? Gargabe; Abfall; Organische Chemie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Grundstudium; Conservation; Environment; Konservierung; Bewahung; Umwelt
Abstract	Distillation is a ubiquitous technique in the undergraduate organic chemistry curriculum; the technique dates back to ca. 3500 B.C.E. With the emergence of green chemistry in the 1990s, the importance of emphasizing responsible waste management practices for future scientists is paramount. Combining the practice of distillation with the message that waste generation should be minimized conveys green concepts from the beginning of the student's experience in the lab. In this experiment, acetone waste collected from the cleaning of student glassware is purified by fractional distillation. The purity of the resulting distillate is determined by refractive index and density calculation. The distilled acetone is of sufficient purity (approximately 88%) that students can reuse it to wash glassware, collect the waste, and add it to a communal still that is operated by the instructor or support personnel. Students learn how to set up and perform a fractional distillation experiment, learn how to test the distillate for purity by refractive index and density, and are exposed to the value of recycling materials for reuse. The communal distillation apparatus provides an ongoing source of purified acetone for students to use throughout the remainder of the term. (Contains 2 tables and 1 figure.) (As Provided).
Anmerkungen	Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10