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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > August  >
In the Laboratory
Trisethylenediaminecobalt(III) Chloride Sulfate as a Subject Material for Widely Different Chemistry Lab Courses
Yoshiki Moriguchi
Department of Chemistry, Fukuoka University of Education, Akama Munakata, Fukuoka 8114192, Japan
Cover
August 2000
Vol. 77 No. 8
p. 1045
Abstract
To make the chemistry lab class more effective within the limits of class hours and equipment available at a small college, I previously reported the integrated and unified lab curricula in inorganic, analytical, and physical chemistry, using Mohr's salt (Fe(NH4)2(SO4) 2.6H2O) or a cobalt complex such as [CoCl2(en)2]Cl. In this report, I describe a new unified lab curriculum, expanded to include an organic chemistry or stereochemistry lab course using rac-tris(ethylenediamine)cobalt(III)chloridesulfate (rac-[Co(en)3]ClSO4). The teaching material has been used to unify several lab courses as follows: preparation of testing material and identification by electronic spectrum (inorganic lab), elemental analyses of cobalt, chloride, and sulfate (analytical lab), optical resolution of diastereoisomers (organic or stereochemistry lab), kinetics of racemization (physical chemistry lab).
More Information
*  Citation
 Moriguchi, Yoshiki. J. Chem. Educ. 2000 77 1045.
*  Keywords
 Coordination Chemistry; Curriculum; Inorganic Synthesis; Quantitative Analysis; Cobalt
*  History
 Created:
Last Updated:		 July 5, 2000
April 15, 2005
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