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1 | The electrochemical properties of sulfur and sulfide mercury en aqueous solvents have been investigated by using voltammetry on mercufy-fiim electrode. The peak of reduction of sulfide mercury in 1 M NaOH and 1 M Na2SO4 is observed at -0.82 ± 0.03 V and 0.80 ± to the reduction of ± 0.01V, the second peak polysulfide ions | 930 | ||||
2 | A method is described for the determination of suifide-ions by cathodic stripping voltammetry at mercury film electrode in 1 M NaOH. The peak height observed at –0,76 ± 0,96 V (saturated silver – chloride electrode) was proportional to the concentration of suifide-ions between 2·10-6 and 1·10-4 M. Tiosulfate - ions do not prevent the determination of sulfide – ions | 1012 |