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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > April  >
Chemical Education Today
Letters
The Spectrophotometric Analysis and Modeling of Sunscreens (about J. Chem. Educ. 1997, 74, 99-102)
Richard Cornelius
Department of Chemistry, Lebanon Valley College, Annville, PA 17003-0501
Cover
April 2001
Vol. 78 No. 4
p. 453
Full Text

The author replies to Underwood and MacNeil:

To accommodate waterproof sunscreen formulations, Underwood and MacNeil describe a substitution of water by propanol in the procedure for our experiment on sunscreens. I am confident that their modification works, for we first used propanol in developing the experiment. We switched to water to save on solvent costs. Given the trend in sunscreen formulations, the change they suggest improves the experiment.

More Information
*  Citation
 Cornelius, Richard. J. Chem. Educ. 2001 78 453.
*  Keywords
 Inquiry-Based / Discovery Method; Introductory / High School Chemistry; Laboratory Instruction; Molecular Modeling / Dynamics; Solutions / Solvents; UV-Vis Spectroscopy
*  History
 Created:
Last Updated:		 March 2, 2001
August 31, 2005
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