Studies on the Sulfur-containing Chelating Agents. XXXVI. Reaction of Palladium Monothioacetylacetonate with Sulfide Ion and Its Application for Determination of Sulfide Ion

Abstract

Palladium monothioacetylacetonate (Pd (SAA)₂) was found to be converted into palladium dithioacetylacetonate (Pd (SSAA)₂) in the presence of sodium sulfide. It was indicated that this reaction follows first order kinetics with respect to the concentrations of Pd (SAA)₂ and sodium sulfide, respectively and on the whole, second order kinetics. A new spectrophotometric method of determination of sulfide ion, which is applicable in the range from 8 μg to 240 μg of sulfide ion, was devised by the measurement of the absorbance of Pd (SSAA)₂ formed (510mμ).