Redox Titrations High-Temperature Superconductors

In analytical chemistry, a redox titration is based on an oxidation-reduction reaction between analyte and titrant. Common analytical oxidants include iodine (I2), permanganate (MnOJ), cerium(IV), and dichromate (Cr207 ). Titrations with reducing agents such as Fe (ferrous ion) and Sn (stannous ion) are less common because solutions of most reducing agents need protection from air to prevent reaction with O2. 

Box 16-1 explains how dIchromate is used to measure chemical oxygen demand in environmental analysis. 

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