The extraction of Zn(II) in aqueous PEG (1550)-(NH4)2SO4 two-phase system using Cl- ions as extracting agent
The extraction of Zn(II) in an aqueous PEG (1550) - (NH4)2SO4 two-phase system as a function of several experimental parameters was studied. PEG-based aqueous two-phase systems are composed of two immiscible phases: a polymer-rich phase and a salt-rich phase, which can be used for extraction experim...
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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2007-01-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2007/0352-51390703289B.pdf |
| _version_ | 1819240452882169856 |
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| author | Bulgariu Laura Bulgariu Dumitru |
| author_facet | Bulgariu Laura Bulgariu Dumitru |
| author_sort | Bulgariu Laura |
| collection | DOAJ |
| description | The extraction of Zn(II) in an aqueous PEG (1550) - (NH4)2SO4 two-phase system as a function of several experimental parameters was studied. PEG-based aqueous two-phase systems are composed of two immiscible phases: a polymer-rich phase and a salt-rich phase, which can be used for extraction experiments. In the absence of a suitable extracting agent, for the system consisting of a mixture of equal volumes of 40 mass% PEG and 40 mass% (NH4)2SO4 aqueous solutions, Zn(II) remained predominantly in the salt-rich phase. Variation of the pH of the salt stock solution did not change very much the extraction efficiency. By adding chloride ions, an enhancement of the Zn(II) extraction was observed. The Zn(II) extraction efficiency in presence of Cl- depends on the acidity of the salt stock solution and on the concentration of chloride ions added into the system. |
| first_indexed | 2024-12-23T14:08:15Z |
| format | Article |
| id | doaj.art-b640e379434d4d65a4daf4460e2cbfb1 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 1820-7421 |
| language | English |
| last_indexed | 2024-12-23T14:08:15Z |
| publishDate | 2007-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-b640e379434d4d65a4daf4460e2cbfb12022-12-21T17:44:08ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212007-01-0172328929710.2298/JSC0703289B0352-51390703289BThe extraction of Zn(II) in aqueous PEG (1550)-(NH4)2SO4 two-phase system using Cl- ions as extracting agentBulgariu Laura0Bulgariu Dumitru1Department of Management and Environmental Engineering, Faculty of Chemical Engineering, Technical University 'Gh. Asachi', Iasi, RomaniaDepartment of Geology and Geochemistry, Faculty of Geography and Geology, 'Al. I. Cuza' University, Iasi, RomaniaThe extraction of Zn(II) in an aqueous PEG (1550) - (NH4)2SO4 two-phase system as a function of several experimental parameters was studied. PEG-based aqueous two-phase systems are composed of two immiscible phases: a polymer-rich phase and a salt-rich phase, which can be used for extraction experiments. In the absence of a suitable extracting agent, for the system consisting of a mixture of equal volumes of 40 mass% PEG and 40 mass% (NH4)2SO4 aqueous solutions, Zn(II) remained predominantly in the salt-rich phase. Variation of the pH of the salt stock solution did not change very much the extraction efficiency. By adding chloride ions, an enhancement of the Zn(II) extraction was observed. The Zn(II) extraction efficiency in presence of Cl- depends on the acidity of the salt stock solution and on the concentration of chloride ions added into the system.http://www.doiserbia.nb.rs/img/doi/0352-5139/2007/0352-51390703289B.pdfaqueous two-phase systemzn(ii) extractionpolyethylene glycol(nh4)2so4chloride ions |
| spellingShingle | Bulgariu Laura Bulgariu Dumitru The extraction of Zn(II) in aqueous PEG (1550)-(NH4)2SO4 two-phase system using Cl- ions as extracting agent Journal of the Serbian Chemical Society aqueous two-phase system zn(ii) extraction polyethylene glycol (nh4)2so4 chloride ions |
| title | The extraction of Zn(II) in aqueous PEG (1550)-(NH4)2SO4 two-phase system using Cl- ions as extracting agent |
| title_full | The extraction of Zn(II) in aqueous PEG (1550)-(NH4)2SO4 two-phase system using Cl- ions as extracting agent |
| title_fullStr | The extraction of Zn(II) in aqueous PEG (1550)-(NH4)2SO4 two-phase system using Cl- ions as extracting agent |
| title_full_unstemmed | The extraction of Zn(II) in aqueous PEG (1550)-(NH4)2SO4 two-phase system using Cl- ions as extracting agent |
| title_short | The extraction of Zn(II) in aqueous PEG (1550)-(NH4)2SO4 two-phase system using Cl- ions as extracting agent |
| title_sort | extraction of zn ii in aqueous peg 1550 nh4 2so4 two phase system using cl ions as extracting agent |
| topic | aqueous two-phase system zn(ii) extraction polyethylene glycol (nh4)2so4 chloride ions |
| url | http://www.doiserbia.nb.rs/img/doi/0352-5139/2007/0352-51390703289B.pdf |
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