Prev. Article Next Article Table of Contents

Article

From Christmas Ornament to Glass Electrode

Your current credentials do not allow retrieval of the full text.

Purchase the full-text

PDF/HTML,
figures/images,
references and tables,
(where available)

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

J. Chem. Educ., 1995, 72 (12), p 1135

DOI: 10.1021/ed072p1135

Publication Date: December 1995

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.