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2007•Chinese Journal of Analysis LaboratoryRequires access

Study on flotation separation of Cadmium(II) by ammonium sulfate-potassium iodide-rhodamine6G system

Xinrong Wen

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Abstract

The flotation separation behavior of cadmium(Ⅱ) with the system of(NH4)2SO4-KI-Rh6G and the conditions for the separation of cadmium(Ⅱ) with other metal ions were studied.The results showed that in presence of 1.0 g(NH4)2SO4 and in a medium of pH 7.0 aqueous solution containing of 1.0 mL of 0.1 mol/L KI and 1.0 mL of 0.001 mol/L Rh6G,Cd2+ was floated quantitatively, and Zn2+,Mn2+,Ni2+,Co2+,Fe3+ could not be floated.Cd2+ was thus separated successfully from those metal ions by flotation.Under the optimum condiuions,trace cadmium(Ⅱ) in synthetic water samples was separated by flotation aod determined by sepectrophotometry with satisfactory results.

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The flotation separation behavior of cadmium(Ⅱ) with the system of(NH4)2SO4-KI-Rh6G and the conditions for the separation of cadmium(Ⅱ) with other metal ions were studied.The results showed that in presence of 1.0 g(NH4)2SO4 and in a medium of pH 7.0 aqueous solution containing of 1.0 mL of 0.1 mol/L KI and 1.0 mL of 0.001 mol/L Rh6G,Cd2+ was floated quantitatively, and Zn2+,Mn2+,Ni2+,Co2+,Fe3+ could not be floated.Cd2+ was thus separated successfully from those metal ions by flotation.Under the optimum condiuions,trace cadmium(Ⅱ) in synthetic water samples was separated by flotation aod determined by sepectrophotometry with satisfactory results.

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Available abstract

The flotation separation behavior of cadmium(Ⅱ) with the system of(NH4)2SO4-KI-Rh6G and the conditions for the separation of cadmium(Ⅱ) with other metal ions were studied.The results showed that in presence of 1.0 g(NH4)2SO4 and in a medium of pH 7.0 aqueous solution containing of 1.0 mL of 0.1 mol/L KI and 1.0 mL of 0.001 mol/L Rh6G,Cd2+ was floated quantitatively, and Zn2+,Mn2+,Ni2+,Co2+,Fe3+ could not be floated.Cd2+ was thus separated successfully from those metal ions by flotation.Under the optimum condiuions,trace cadmium(Ⅱ) in synthetic water samples was separated by flotation aod determined by sepectrophotometry with satisfactory results.

Key concepts: Chemistry, Cadmium, Aqueous solution, Ammonium sulfate, Iodide, Metal ions in aqueous solution, Metal, Iodine

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Study on flotation separation of Cadmium(II) by ammonium sulfate-potassium iodide-rhodamine6G system — Research Paper | ScholarLens