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Journal Articles: 8 results
Metal Complexes of Trifluoropentanedione. An Experiment for the General Chemistry Laboratory  Robert C. Sadoski, David Shipp, and Bill Durham
Investigation of the transition-metal complexes produced by the reactions of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), and Cu(II) with 1,1,1-trifluoro-2,4-pentanedione; mass spectroscopy is used to determine the stoichiometry of the reaction products.
Sadoski, Robert C.; Shipp, David; Durham, Bill. J. Chem. Educ. 2001, 78, 665.
Coordination Compounds |
Synthesis |
Mass Spectrometry |
Transition Elements |
Stoichiometry
Chromium Pollution: An Experiment Adapted for Freshman Engineering Students  Penny Seymour
Students analyze water samples contaminated with Cr(VI) to determine which of several industries appears to be the source of the contamination. The adaptation involves requiring the students to develop the analytic procedure themselves, rather than working from a prepared set of instructions, and then to report the results as a letter plus appendices, including general recommendations for remedial action, directed to the client who contracted the investigation.
Seymour, Penny. J. Chem. Educ. 1999, 76, 927.
Metals |
Applications of Chemistry
Testing the Waters for Chromium  Herrmann, Mary S.
A test for the presence of Cr(IV) in water using a sensitive colorimetric reagent.
Herrmann, Mary S. J. Chem. Educ. 1994, 71, 323.
Water / Water Chemistry |
Metals |
Quantitative Analysis
Fast and slow reactions of chromium compounds  Knox, Kerro
The inertness of ligand substitution by chromium(III) ions is compared with other reactions that do proceed at reasonably fast rates, and an outcome is obtained in which two solutions of identical compositions contain different chromium species of different colors.
Knox, Kerro J. Chem. Educ. 1990, 67, 700.
Coordination Compounds |
Transition Elements
Density gradient columns for chemical displays  Guenther, William B.
An important advantage of these demonstrations of complex chemistry is that students can observe them over a period of time as they grasp concepts of solution equilibria.
Guenther, William B. J. Chem. Educ. 1986, 63, 148.
Acids / Bases |
pH |
Coordination Compounds |
Metals
Chemical toxicology. Part II. Metal toxicity  Carter, D. E.; Fernando, Quintus
Considers essential trace metals and the toxic affects of vanadium, chromium, manganese, iron, cobalt copper, zinc, selenium, molybdenum, cadmium, lead, and mercury.
Carter, D. E.; Fernando, Quintus J. Chem. Educ. 1979, 56, 490.
Toxicology |
Metals
Non-polluting treatment of the waste of chromic acid mixture  Shirai, Michiko; Matsumoto, Yoshio
Regenerating the waste of chromic acid mixtures.
Shirai, Michiko; Matsumoto, Yoshio J. Chem. Educ. 1977, 54, 609.
Laboratory Management |
Metals
Metals of groups IV-VIII. Group VI (Chromium)  Alyea, Hubert N.; Cooper, Edwin H.
The preparation of various chromium compounds from chromite ore.
Alyea, Hubert N.; Cooper, Edwin H. J. Chem. Educ. 1969, 46, A452.
Metals