Determination of hydrogen sulphide and sulphur dioxide in a mixture |
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| Authors: | S Sriman Narayanan V R S Rao |
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| Institution: | (1) Department of Chemistry, Indian Institute of Technology, 600-036 Madras, India;(2) Department of Analytical Chemistry, University of Madras, Guindy Campus, 600-025 Madras, India |
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| Abstract: | A method has been proposed for the determination of hydrogen sulphide and sulphur dioxide in a mixture. The method is based upon the quantitative oxidation of sulphide and sulphite with an excess of radiochloramine-T in alkaline medium /0.1N NaOH/. The released chloride activity is proportional to the total amount of sulphide and sulphite present. Addition of 1% CdSO4 solution to the mixture of sulphide and sulphite precipitates sulphide, and sulphite in the filtrate determined by the reagent. From the difference in activities, the amount of sulphide can be calculated. This method can be employed for the determination of hydrogen sulphide and sulphur dioxide in air samples. |
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