Related Experiment Video
Updated: Sep 20, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
Published on: December 29, 2016
[Study on extraction separation of Bi(III), Fe(III), Cu(II), Ni(II), Co(II) and Pb(II) in PEG-(NH4)2SO4-PR system
Hong Cai1, Chun-li Zhang, Xiu-li Xu
1Chemistry Department, Suzhou Teachers' College, Suzhou 234000, China.
Abstract:
In polyethylene PEG-(NH4)2SO4-PR system the extraction separation behaviour of the complexes of Bi(III), Fe(III), Cu(II), Ni(II), Co(II) and Pb(II) was investigated. The results indicated that Bi in pH 3.5-6.5 and Fe(III) in pH 4.0-7.0 were almost completely extracted by the PEG phase, while Cu(II) and Co(II) in pH 1.0-7.0, Pb(II) in pH 2.0-7.0, and Ni(II) in pH 1.0-4.5 were not extracted by the PEG phase. So Bi(III) (pH 3.5) and Fe(III) (pH 5.0) were quantitatively separated from the mixed solution of Bi(III), Fe(III), Cu(II), Co(II), Pb(II) and Ni(II) ions. The extraction mechanism for PEG phase was preliminarily studied.
More Related Videos
10:31Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores
Published on: December 6, 2015
07:49Characterizing Lewis Pairs Using Titration Coupled with In Situ Infrared Spectroscopy
Published on: February 20, 2020
Related Concept Videos
Extraction: Advanced Methods
Precipitation and Co-precipitation
Precipitation of Ions
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Electrodeposition
Electrodeposition can...
Qualitative Analysis
For instance, group IV...
Precipitation Titration: Endpoint Detection Methods
In the Volhard method, a standard excess of AgNO3 is first added to the...