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Ascorbic acid analysis by redox titration
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Ascorbic acid analysis by redox titration

CHEM1083 - Food Chemistry

11 Pages Essays / Projects Year: Pre-2018

Ascorbic acid is a reducing agent and on oxidation forms dehydroascorbic acid. Both these chemicals have Vitamin C activity although often chemists erroneously assay for ascorbic acid only. In this class you will assay for ascorbic acid a beverage product using the oxidizing agent dichlorophenolindophenol (DCPIP). DCPIP is also an acid-base indicator having a pink colour in acid solution and a blue colour in alkaline solution. The reduced form of DCPIP is colourless.

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