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Citation: Yang Zichao, Wang Xiushan, Zhang Anyun, Yan Jumei. EXTRACTION OF PALLADIUM WITH TOPO[J]. Chinese Journal of Applied Chemistry, ;1990, 7(5): 72-76. shu

EXTRACTION OF PALLADIUM WITH TOPO

1.
Department of Chemistry, Shaanxi Normal University, Xi'an 710062

Received Date: 11 July 1989
Available Online: 17 March 1990

In this paper, the extraction of palladium with tri-n-octyl phosphine oxide (TOPO) from hydrochloric acid solution and its back-extraction with thiourea have been studied, The composition of the extraction complexes determined experimentally by the methods of equi-molal series, saturation,solpe and chemical analysis. The extraction mechanism of palladium with TOPO were discussed through UV-VIS spectrometric determination. The extractionprocess can be expressed as:2PdCl_4(a)^2-+2TOPO_(o)⇌Pd₂Cl₄·2TOPO_(o)+4Cl_(a)^-
- Palladium,
- tri-n-oxtyl phosphine oxide,
- extraction
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