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Titolo:
Effect of solvent in competitive alkali metal cation transport across bulkliquid membranes by a lipophilic lariat ether carboxylic acid carrier
Autore:
Bartsch, RA; Jeon, EG; Walkowiak, W; Apostoluk, W;
Indirizzi:
Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA Texas Tech Univ Lubbock TX USA 79409 hem & Biochem, Lubbock, TX 79409 USA Wroclaw Tech Univ, Inst Inorgan Chem & Met Rare Elements, PL-50370 Wroclaw, Wroclaw Tech Univ Wroclaw Poland PL-50370 re Elements, PL-50370 Wroclaw,
Titolo Testata:
JOURNAL OF MEMBRANE SCIENCE
fascicolo: 1-2, volume: 159, anno: 1999,
pagine: 123 - 131
SICI:
0376-7388(19990701)159:1-2<123:EOSICA>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXTRACTION; CHLOROFORM; SEPARATION; ANION;
Keywords:
coupled, facilitated transport; liquid membranes; lariat ether carboxylic acid; crown ether; bulk liquid membrane transport; alkali metal cations; membrane solvent variation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Bartsch, RA Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA Texas Tech Univ Lubbock TX USA 79409 m, Lubbock, TX 79409 USA
Citazione:
R.A. Bartsch et al., "Effect of solvent in competitive alkali metal cation transport across bulkliquid membranes by a lipophilic lariat ether carboxylic acid carrier", J MEMBR SCI, 159(1-2), 1999, pp. 123-131

Abstract

Fluxes and selectivities for competitive alkali metal cation transport across bulk liquid membranes by the lipophilic crown ether carboxylic acid carrier sym-(octyl)dibenzo-16-crown-5-oxyacetic acid have been determined in avariety of chlorinated hydrocarbon and aromatic hydrocarbon solvents. The membrane solvents include: dichloromethane, chloroform, carbon tetrachloride, 1,2-dichloroethane, 1,1,1-trichloroethane, o-dichlorobenzene, toluene and p-xylene. The total alkali metal cation and Na+ fluxes, as well as the Na/K+ and Na+/Li+ transport selectivity ratios, are compared with selected properties of these organic solvents using the Schmidt, Swain, Koppel-Palm and Kamlet-Taft models. The best correlations are obtained for the Na+ flux and the Na+/K+ transport selectivity. (C) 1999 Elsevier Science B.V. All rights reserved.

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Documento generato il 25/11/20 alle ore 03:47:09