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2003•Journal of Sichuan Normal UniversityRequires access

Green Determination Method of Chemistry Oxygen Demand

Zhao Shi

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Abstract

There exists a problem of lower percentage of oxidization to the organic matters of benzene and aromatic hydrocarbons when we determine the COD by the method of potassium dichromate titration. From the results of experiments, the COD determined by the method of potassium dichromate titration is 50% lower than that of theory, and this method itself is harmful to environment and people. The COD determined by the method of ceric sulfate titration is higher than the COD determined by the method of potassium dichromate titration.

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What this paper is about

There exists a problem of lower percentage of oxidization to the organic matters of benzene and aromatic hydrocarbons when we determine the COD by the method of potassium dichromate titration. From the results of experiments, the COD determined by the method of potassium dichromate titration is 50% lower than that of theory, and this method itself is harmful to environment and people. The COD determined by the method of ceric sulfate titration is higher than the COD determined by the method of potassium dichromate titration.

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Available abstract

There exists a problem of lower percentage of oxidization to the organic matters of benzene and aromatic hydrocarbons when we determine the COD by the method of potassium dichromate titration. From the results of experiments, the COD determined by the method of potassium dichromate titration is 50% lower than that of theory, and this method itself is harmful to environment and people. The COD determined by the method of ceric sulfate titration is higher than the COD determined by the method of potassium dichromate titration.

Key concepts: Potassium dichromate, Titration, Chemistry, Potassium, Benzene, Inorganic chemistry, Sulfate, Chemical oxygen demand

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