Get A Microscale Approach to Organic Laboratory Techniques (5th PDF

By Donald L. Pavia, Gary M. Lampman, George S. Kriz, Randall G. Engel

ISBN-10: 1133106528

ISBN-13: 9781133106524

From biofuels, eco-friendly chemistry, and nanotechnology, this confirmed laboratory textbook presents the updated insurance scholars want of their coursework and destiny careers. The book's experiments, all designed to make use of microscale glassware and gear, disguise conventional natural reactions and syntheses, the isolation of traditional items, and molecular modeling and comprise project-based experiments and experiments that experience a organic or overall healthiness technological know-how concentration. up-to-date all through with new and revised experiments, new and revised essays, and revised and multiplied suggestions, the 5th variation is prepared in line with essays and subject matters of present curiosity.

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Extra resources for A Microscale Approach to Organic Laboratory Techniques (5th Edition)

Example text

The design 11 © Cengage Learning 2013 EXPERIMENT 1 ■ Introduction to Microscale Laboratory Figure 10 Microspatulas. of these spatulas permits the handling of milligram quantities of substances without undue spillage or waste. The larger style (see Figure 10) is more useful when relatively large quantities of solid must be dispensed. A clean work area is of utmost importance when working in the laboratory. The need for cleanliness is particularly great when working with the small amounts of materials characteristic of microscale laboratory experiments.

Compare the color of the pure sulfanilamide to that of the impure sulfanilamide at the beginning of the experiment. Determine the melting point of both the pure sulfanilamide and the original impure material. The literature melting point for pure sulfanilamide is 163–164°C. At the option of the instructor, turn in your crystallized material in a properly labeled container. For additional information about crystallization, see “Comments on the ­Crystallization Procedure” in Experiment 3A. Optional Exercise See “Optional Exercise” in Experiment 3A.

Additional Pasteur pipettes can be calibrated easily by holding them next to the pipette calibrated in Laboratory Exercise 2 and scoring a new mark on each pipette at the same level as the mark placed on the calibrated pipette. We recommend that several Pasteur pipettes be calibrated at one time for use in future experiments. Extraction A technique frequently applied in purifying organic reaction products is extraction. In this method, a solution is mixed thoroughly with a second solvent. The second © Cengage Learning 2013 10 A Microscale Approach to Organic Laboratory Techniques 5/e ■ Pavia, Lampman, Kriz, Engel solvent is not miscible with the first solvent.

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A Microscale Approach to Organic Laboratory Techniques (5th Edition) by Donald L. Pavia, Gary M. Lampman, George S. Kriz, Randall G. Engel


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