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Citation: Liu Jianmin, Yang Rudong, Peng Wantang, Liu Yiren. Synergistic Extraction of Cerium by BPMOPP and 1,10-Phenanthroline[J]. Chinese Journal of Applied Chemistry, ;1994, 11(1): 1-6. shu

Synergistic Extraction of Cerium by BPMOPP and 1,10-Phenanthroline

1.
Department of Chemistry, Lanzhou University, Lanzhou 730000

Received Date: 15 December 1991
Available Online: 18 August 1993
Fund Project:

A novel acyclic β-diketone type quadridentate chelating agent,bis-(1'-phenyl-3'-methyl-5' oxopyrazol-4'-yl)phthaldione(BPMOPP,H₂A) was synthesized from 1-phenyl-3-methylpyrazolone and o-phthalyl chloride. The valency behaviour of cerium ion and thesynergistic extraction of cerium by BPMOPP and 1, 10-phenathroline from aqueous hydrochloric acid or hydrochloric acid and sodium formate buffer solution have been investigated. By using the slope analysis method the solid mixed-ligand synergic adduct showed a constitution of CeA·HA·phen with an extraction equilibrium constant k_s,e=1.21×10^-2. Allthe compounds obtained have been characterized by elemental an alvsis, UV, IR,¹H NMR,and TG-DTA measurements. The molar conductivity of the complexes in chloroform was 0.1~0.2 S·cm²/mol indicating that they are nonelectrolytes.
- bis-acylpyrazolone,
- phenathroline,
- cerium,
- synergistic extraction
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