Producción Científica Profesorado

Selective Liquid-Liquid Extraction of Mercury(II) from Aqueous Solution by N-Alkyldithiophosphate Compounds CH3(CH2)nS2P(OC6H4)2 (n=0 to 4)



Galan Vidal, Carlos Andres

2013

Perez-Garcia, F; Galan-Vidal, CA; Alvarado-Rodriguez, JG; Paez-Hernandez, ME; Andrade-Lopez, N; Silva, MTR., Selective Liquid-Liquid Extraction of Mercury(II) from Aqueous Solution by N-Alkyldithiophosphate Compounds CH3(CH2)nS2P(OC6H4)2 (n=0 to 4), SEPARATION SCIENCE AND TECHNOLOGY, Año: 2013 Volume: 48 Issue: 5 Pages: 736-740 DOI: 10.1080/01496395.2012.716480 ISSN: 0149-6395


Abstract


The extraction of mercury(II) from nitric acid solutions by the dithiophosphate compounds CH3(CH2)nS2P(OC6H4)2 (n = 0 to 4) has been examined. The best extracting properties were displayed by the liquid compound containing the longest alkyl chain CH3(CH2)4S2P(OC6H4)2 (Pen-DTP) in acidic media. The results indicate the stability of Pen-DTPA in nitric and sulphuric media. Pen-DTP selectively extracted Hg(II) in the presence of some interfering ions such as Cd(II), Pb(II) and Bi(III). The Hg(II) recovery from back-extraction experiments with chloridric acid is higher than 70%. Mostly, this extractant shows a remarkable selectivity in the extraction of mercury (76.6%) in the presence of Ag(I) (9.2%) without using a masking agent.



Producto de Investigación




Artículos relacionados

Estudio de las Interacciones Ácido Húmico-Metales Pesados y Determinación de sus Constantes de Estab...

Zinc Electrodeposition from Chloride Solutions onto Glassy Carbon Electrode

A Voltammetric Study Of The Underpotential Deposition Of Cobalt Onto A Glassy Carbon Electrode

A theoretical quantum study on the distribution of electrophilic and nucleophilic active sites on Ag...

Nucleation and Growth Kinetics of Electrodeposited Sulfate-Doped Polypyrrole: Determination of the D...

Nucleation and growth of cobalt onto different substrates: Part II. The upd-opd transition onto a go...

Nucleation and growth of cobalt onto different substrates: Part I. Underpotential deposition onto a ...

Quantum chemical study of the electrochemical reduction of the [Co(H2O)6]2+ and [Co(NH3)5(H2O)]2+ io...

Synthesis and crystal structures of cis-palladium(II) and cis-platinum(II) complexes containing di...

Characterization of Main Anthocyanins Extracted from Pericarp Blue Corn by MALDI-ToF MS