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  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > August  >
In the Laboratory
Low-Cost Constant Temperature Heating Block
Charles G. Shevlin, Ward Coppersmith, Christopher Fish, Stanley Vlock, William Vellema
The Scripps Research Institute, 10550 N. Torrey Pines Rd, CVN-18, La Jolla, CA 92037
Cover
August 1997
Vol. 74 No. 8
p. 958
Abstract
A simple constant temperature heat block was constructed from readily available materials. The configuration of the heating block can be constructed to meet the needs of any laboratory. Some highlights of this temperature controller include the elimination of dangerous flames and cumbersome water baths, maintenance of temperature over a wide range within 1 °C and compact electronics. In addition, the IC power supply circuit is self-contained thus eliminating the need for bulky transformers and additional power related circuitry. Secondary school and undergraduate laboratories can build many units for the cost of a commercially comparable one while simultaneously putting to practice several electronic principles taught in most instrumental analysis courses.
More Information
*  Citation
 Shevlin, Charles G.; Coppersmith, Ward; Fish, Christopher; Vlock, Stanley; Vellema, William. J. Chem. Educ. 1997 74 958.
*  Keywords
 Organic Chemistry, Instrumental Methods, Laboratory Equipment/Apparatus
*  History
 Created:
Last Updated:		 July 28, 1999
June 23, 2005
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