ScholarLens Back to search
2006•Journal of Chengdu University of Information TechnologyRequires access

Rapid determination of COD in water sample by using potassium dichromate

L Zhang

Open publisher page 0 citations

Abstract

A new analytical method of the chemical oxygen demand(COD) for water sample is developed.The manganese sulfate substitutes the silver sulfate for the catalyst with the H_2SO_4-H_3PO_4 instead of H_2SO_4.The results show that the optimal condition is the 1x10~(-1) mol.L~(-1) of manganese sulfate with the ratio of H_2SO_4 to H_3PO_4=5:1 and 10-minutes of the condensation time.It is compared with the standard model and the analytical time is greatly reduced with almost the same accuracy and precision.

About this research paper

What this paper is about

A new analytical method of the chemical oxygen demand(COD) for water sample is developed.The manganese sulfate substitutes the silver sulfate for the catalyst with the H_2SO_4-H_3PO_4 instead of H_2SO_4.The results show that the optimal condition is the 1x10~(-1) mol.L~(-1) of manganese sulfate with the ratio of H_2SO_4 to H_3PO_4=5:1 and 10-minutes of the condensation time.It is compared with the standard model and the analytical time is greatly reduced with almost the same accuracy and precision.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

A new analytical method of the chemical oxygen demand(COD) for water sample is developed.The manganese sulfate substitutes the silver sulfate for the catalyst with the H_2SO_4-H_3PO_4 instead of H_2SO_4.The results show that the optimal condition is the 1x10~(-1) mol.L~(-1) of manganese sulfate with the ratio of H_2SO_4 to H_3PO_4=5:1 and 10-minutes of the condensation time.It is compared with the standard model and the analytical time is greatly reduced with almost the same accuracy and precision.

Key concepts: Potassium dichromate, Manganese, Sulfate, Potassium, Chemical oxygen demand, Potassium sulfate, Condensation, Chemistry

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Rapid determination of COD in water sample by using potassium dichromate — Research Paper | ScholarLens