Chemistry, asked by yutikabaar4564, 8 months ago

Which are the methods of measuring chemical oxygen demand?

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Answered by Anonymous

40

The most common test method is the colorimetric analysis after oxidizing the COD with acid and using indicator compounds, such as hexavalent dichromate. In some instances, however, there are compounds that will interfere with the colorimetric analysis, and titration is required to determine COD levels.

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