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2010•Journal of Zhengzhou UniversityRequires access

A Potentiometric Titration Method for the Determination of Sodium Chloride in the Compound Peroxymonosulphate Powder

Feiqun Xue

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Abstract

To develop a method for the determination of sodium chloride in the compound peroxymonosulphate powder,the test took sodium chloride basic reagent as comparison,and a potentiometric-argentometric titration method was established to measure the contents of sodium chloride at normal temperature.The results showed that the linear range of the sodium chloride was 10.0 mg～55.0 mg with the correlation coefficient of 0.999 7,the repeatability was good with RSD=1.11%,the average recovery with blank samples was 99.6% with RSD=0.88% and the average recovery was 99.1% with RSD=1.39%,which ensures its adequate accuracy.The method is simple and accurate.It could be adopted for the quality control of the contents of sodium chloride in the compound peroxymonosulphate powder.

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What this paper is about

To develop a method for the determination of sodium chloride in the compound peroxymonosulphate powder,the test took sodium chloride basic reagent as comparison,and a potentiometric-argentometric titration method was established to measure the contents of sodium chloride at normal temperature.The results showed that the linear range of the sodium chloride was 10.0 mg～55.0 mg with the correlation coefficient of 0.999 7,the repeatability was good with RSD=1.11%,the average recovery with blank samples was 99.6% with RSD=0.88% and the average recovery was 99.1% with RSD=1.39%,which ensures its adequate accuracy.The method is simple and accurate.It could be adopted for the quality control of the contents of sodium chloride in the compound peroxymonosulphate powder.

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Available abstract

To develop a method for the determination of sodium chloride in the compound peroxymonosulphate powder,the test took sodium chloride basic reagent as comparison,and a potentiometric-argentometric titration method was established to measure the contents of sodium chloride at normal temperature.The results showed that the linear range of the sodium chloride was 10.0 mg～55.0 mg with the correlation coefficient of 0.999 7,the repeatability was good with RSD=1.11%,the average recovery with blank samples was 99.6% with RSD=0.88% and the average recovery was 99.1% with RSD=1.39%,which ensures its adequate accuracy.The method is simple and accurate.It could be adopted for the quality control of the contents of sodium chloride in the compound peroxymonosulphate powder.

Key concepts: Potentiometric titration, Repeatability, Sodium, Reagent, Chemistry, Titration, Chloride, Electroanalytical method

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A Potentiometric Titration Method for the Determination of Sodium Chloride in the Compound Peroxymonosulphate Powder — Research Paper | ScholarLens