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Study on the Color Reaction of Palladium with Chlorophosphonazo III and Its Application

Xi Liu

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Abstract

The color reaction between palladium and chlorophosphonazo Ⅲ has been studied. It was found that palladium reacts with chlorophosphonazo Ⅲ to form a 1∶1 blue complex in H\-2SO\-4 medium. The complex exhibits a maximum absorption at 644 nm with an apparent molar absorptivity of 2.4×10\+4 L/(mol·cm). Beer's law is obeyed in the range of 0.1～1.5 mg/L Pd(Ⅱ). The method proposed was applied to the determination of palladium in refined ore and anode mud samples with satisfactory results.

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What this paper is about

The color reaction between palladium and chlorophosphonazo Ⅲ has been studied. It was found that palladium reacts with chlorophosphonazo Ⅲ to form a 1∶1 blue complex in H\-2SO\-4 medium. The complex exhibits a maximum absorption at 644 nm with an apparent molar absorptivity of 2.4×10\+4 L/(mol·cm). Beer's law is obeyed in the range of 0.1～1.5 mg/L Pd(Ⅱ). The method proposed was applied to the determination of palladium in refined ore and anode mud samples with satisfactory results.

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Available abstract

The color reaction between palladium and chlorophosphonazo Ⅲ has been studied. It was found that palladium reacts with chlorophosphonazo Ⅲ to form a 1∶1 blue complex in H\-2SO\-4 medium. The complex exhibits a maximum absorption at 644 nm with an apparent molar absorptivity of 2.4×10\+4 L/(mol·cm). Beer's law is obeyed in the range of 0.1～1.5 mg/L Pd(Ⅱ). The method proposed was applied to the determination of palladium in refined ore and anode mud samples with satisfactory results.

Key concepts: Palladium, Molar absorptivity, Color reaction, Chemistry, Absorption (acoustics), Spectrophotometry, Anode, Nuclear chemistry

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