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

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

Pentacoordination at Germanium by Transannular Bonding of Sulfur or Oxygen in an Eight-Membered Ring...

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

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

Study on the intramolecular transannular chalcogentin interactions in dithiastannecine compounds.

Synthesis, characterization and crystal structures of organolead dithiolate compounds displaying tra...

Mild Oxidation of C?C Bonds of Benzoiridacycles

Six-membered ring chelate complexes of Pd(II) and Pt(II) derived from di-(2-pyridyl)pyrimidin-2-ylsu...

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

Synthesis, characterization and crystal structures of dipyridyl-N-methylimine and cloro-bis (N,N?-2,...