Colorimetric Hydrogel from Natural Indicators: A Tool for Electrochemistry Education | Zendy

Anna Fogde | Zendy; Berit Kurtén | Zendy; Thomas Sandberg | Zendy; TanPhat Huynh | Zendy

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Colorimetric Hydrogel from Natural Indicators: A Tool for Electrochemistry Education

Author(s) -

Anna Fogde,

Berit Kurtén,

Thomas Sandberg,

TanPhat Huynh

Publication year - 2020

Publication title -

journal of chemical education

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.499

H-Index - 84

eISSN - 1938-1328

pISSN - 0021-9584

DOI - 10.1021/acs.jchemed.0c00440

Subject(s) - outreach , electrolysis , environmentally friendly , work (physics) , environmental science , bulk electrolysis , computer science , multimedia , process engineering , chemistry , engineering , mechanical engineering , electrode , political science , ecology , law , electrolyte , biology

The electrolysis of water is popular both as lab work and as a demonstration. In this activity, the electrolysis of water in the presence of a pH indicator is used to produce text and symbols. This report describes the design of an environmentally friendly setup of a writing board utilizing the electrolysis of water in a hydrogel environment. The activity can be performed by only using chemicals and materials that are easily accessible to everyone, with no special permit needed. The writing board has been developed mainly as an outreach activity for our faculty and has been assessed during visits from upper secondary school students.

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