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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 7 Issue 6 (2002) pp 354-355

Microwave-Assisted Dehydration of Aqua Complexes

Naokazu Yoshikawa* and Hiroshi Takashima

Heijou High School, Nara City, 2-11 Suzaku 631-0806, Japan and Nara Women’s University, Department of Chemistry, Faculty of Science, Nara City 630-8506, Japan,
Received August 12, 2002. Accepted October 11, 2002

Published online: 1 November 2002

Abstract. A microwave oven is used for the gravimetric analysis of several transition metal complexes, in particular, the dehydration of Fe, Ni, Co, Cu and Zn aqua complexes. This is a simple, convenient, and colorful experiment using transition metal aqua complexes. The procedure is designed to help chemistry students understand the concept of coordinated water.

Key Words:  Laboratories and Demonstrations; general chemistry; high school chemistry

(*) Corresponding author. (E-mail:

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Issue date: December 1, 2002

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