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  Home > JCE Print > Journal of Chemical Education > Issues > 2008  > January  >
In the Laboratory
Cost-Effective Teacher
Variable Temperature Equipment for a Commercial Magnetic Susceptibility Balance
Albert Lötz
Department Chemie, der Universität München, D-81377 München, Germany
Cover
January 2008
Vol. 85 No. 1
p. 107
Abstract
Variable temperature equipment for the magnetic susceptibility balance MSB-MK1 of Sherwood Scientific, Ltd., is described. The sample temperature is controlled with streaming air heated by water in a heat exchanger. Whereas the balance as sold commercially can be used only for room temperature measurements, the setup we designed extends the temperature range from 20 °C to 80 °C in spite of the very narrow gap of the magnet. Aside from a recirculating water thermostat and a compressed air supply, all other parts of the variable temperature equipment are inexpensive, easily available, and can be put together without professional technical assistance. The performance of the balance in the temperature range provided is not worse than that at room temperature, as demonstrated by measurements with four magnetic standards.
More Information
*
Citation
Lötz, Albert. J. Chem. Educ. 2008, 85, 107.
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Keywords
Inorganic Chemistry; Instrumental Methods; Laboratory Equipment / Apparatus; Laboratory Instruction; Magnetic Properties; Physical Chemistry; Second-Year Undergraduate; Upper-Division Undergraduate
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History
Created:
Last Updated:
12/4/2007
12/10/2007
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  Home > JCE Print > Journal of Chemical Education > Issues > 2008  > January  > Page 107


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