ERIC Number: EJ1218897
Record Type: Journal
Publication Date: 2019-Jun
Pages: 5
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
Characterizing Color with Reflectance
Journal of Chemical Education, v96 n6 p1124-1128 Jun 2019
Pigments, dyes, and transition-metal compounds are made in courses across the undergraduate chemistry curriculum, but student characterization of these compounds' most striking features, their colors, seldom goes beyond verbal descriptions. Affordable, hand-held, fiber-optic reflectance spectrophotometers make it possible to advance students' understanding of color. Reflectance spectra provide graphical information about color, whereas CIE "L*a*b*" color coordinates describe color quantitatively. This article describes how collection and interpretation of reflectance data are used to round out pigment syntheses in a course for nonscience majors. This approach is transferrable to any experiment in which students obtain colored solids.
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Color, Spectroscopy, Science Experiments, Concept Formation, Data Collection, Data Interpretation, Nonmajors, Teaching Methods, Hands on Science, Interdisciplinary Approach
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
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A