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)



Alvarado Rodríguez, José Guadalupe

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

Study on the intramolecular transannular chalcogentin interactions in dithiastannecine compounds.

Structural differences in eight- and ten-membered heterocyclic tin compounds displaying transannular...

Synthesis and Spectroelectrochemical Studies of Mixed Heteroleptic Chelate Complexes of Ruthenium(II...

Study of the D?Sb (D = O, S) Transannular Interaction in Sb-Monohalogenated Dibenzostibocines ? An E...

Hypervalence at tin(IV) by transannular bonding of sulfur in an eight-membered ring: The case of dib...

Synthesis and crystal structure of the N-8-(diphenyl-hydroxy-2-aminomethylpyridine)borane

cis-Palladium(II) complexes of derivatives of di-(2-pyridyl)methane: Study of the influence of the b...

Mild Oxidation of C?C Bonds of Benzoiridacycles

Pentacoordination at antimony in dibenzostibocines via DSb transannular interactions (D = O, S): A s...

Synthesis and Crystal Structure of [Te{S(C6H3S)2O}]: A Tetracyclic Tellurium(II) Compound Displaying...