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The Chemical Educator

ISSN: 1430-4171 (electronic version)

Table of Contents

Abstract Volume 21 (2016) pp 202-203

Turning Waste Silver Chloride into Silver Nanoparticles

Ben Meynaerts, Mathias Jacobs, Natalie Chiaverini and Tom Mortier*

Faculty of Management and Technology, University Colleges Leuven-Limburg, Herestraat 49, 3000 Leuven, Belgium,
Received March 15, 2016. Accepted September 27, 2016.

Published: 14 October 2016

Abstract. Silver chloride is generally seen as a waste product in school chemistry labs. In this article we describe the use of waste silver chloride as a starting product to synthesize stabilized silver nanoparticles. Waste silver chloride was first dissolved using ammonia into diamminesilver(I) ions and subsequently reduced with sodium borohydride using citrate as a stabilizer. The appearance of stable silver colloids can be demonstrated using the Faraday-Tyndall effect and the plasmon resonance can be visualized with UV/Vis spectroscopy.

Key Words: Laboratories and Demonstrations; inorganic chemistry; nanotechnology, silver colloids, UV/Vis spectroscopy

(*) Corresponding author. (E-mail:

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