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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 11 Issue 3 (2006) pp 181-183

Two Consecutive Reactions in Microscaled Electrolysis Cells

Sobhi Basheer and Muhamad Hugerat,*

S.B. Biotechnologies, The R&D Center, The Galilee Society, POB 437 Shfar-Am 20200, Israel and The Arab College for Education in Israel, Haifa, 22 Hachashmal Str., P.O.Box 33145, Israel,
Received September 30, 2005. Accepted March 20, 2006.

Published online: 17 May 2006

Abstract. This work describes a container for electrolysis cells and electrodes that has been microscaled to demonstrate two consecutive reactions in a two-phase system. In the first step, reactive species, such as chlorine gas or bromine, are produced in the water phase of the electrolysis cell. In the second step, those reactive species diffuse to the upper phase to react with unsaturated oil triglycerides and produce a semi-solid product. The different configurations of the microscaled Hoffmann apparatus developed in this work present a convenient tool for student experiments or demonstrations.

Key Words: Laboratories and Demonstrations; general chemistry; microscale experiments; electrochemistry; consecutive reactions; biphase systems; interface and margarine-like substance

(*) Corresponding author. (E-mail:

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Issue date: June 1, 2006

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