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  Home > JCE Print > Journal of Chemical Education > Issues > 1995  > December  >
Laboratory Experiments
From Christmas Ornament to Glass Electrode
Rogério T. da Rocha, Ivano G. R. Gutz, and Claudimir L. do Lago
Departamento de Quimica Fundamental, Instituto de Quimica, Universidade de Sao Paulo, Caixa Postal 26077, 05599-970, Sao Paulo SP, Brazil
Cover
December 1995
Vol. 72 No. 12
p. 1135
Abstract
In potentiometric techniques, pH measurements require a costly and fragile accessory: the glass electrode. A glass electrode is difficult to make because the wall of the sensing glass bulb must be very thin, and glass of special composition is required. Although the glass bulb may be made by a skilled glazier, we choose a more impressive and simple way. The glass bulb can be made from a Christmas-tree ornamental ball.
More Information
*  Citation
 Da Rocha, Rogerio T.; Gutz, Ivano G. R.; do Lago, Claudimir L. J. Chem. Educ. 1995 72 1135.
*  Keywords
*  History
 Created:
Last Updated:		 10/1/1999
5/22/2006
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