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Citation: LI Quan-Min, GENG Xin-Hua, LIU Qi, ZHANG Qing-Fen. Extraction Separation of Cadmium by KI-Ethanol in the Presence of (NH₄)₂SO₄[J]. Chinese Journal of Applied Chemistry, ;2000, 17(1): 69-71. shu

Extraction Separation of Cadmium by KI-Ethanol in the Presence of (NH₄)₂SO₄

1.
Department of Chemistry, He'nan Norm al University, Xin xiang 453002

Received Date: 14 July 1999
Available Online: 20 October 1999
Fund Project:

A study on liquid-liquid extraction of cadmium based on KI-ethanol in the presence of ammonium sulphate has been performed.It shows that the charged complex compound CdI₄^2- could be easily extracted into the ethanol phase. Commonions such as Fe³⁺, Co²⁺, Ni²⁺, Mn²⁺, Zn²⁺, Al³⁺ and Cr³⁺ would not be extracted into the ethanol phase and Cd²⁺ could be separated completely from them by mixture of 3.0 g (NH₄)₂SO₄ and 0.2 g KI in 10.0 mL 30% (volume fraction) ethanol solution at pH=1~5.
- cadmium,
- extraction separation,
- ethanol,
- potassium iodide
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Extraction Separation of Cadmium by KI-Ethanol in the Presence of (NH4)2SO4

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Extraction Separation of Cadmium by KI-Ethanol in the Presence of (NH₄)₂SO₄