Effects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol + sulfate salts aqueous two-phase systems
Phase diagrams and liquid – liquid equilibrium (LLE) data for aqueous two-phase systems (ATPSs) containing zinc sulfate, magnesium sulfate or aluminium sulfate and polyethylene glycols PEG 300, 400 and 600 have been determined at 298.15 K. It was attempted to show how the PEG molecular weight and th...
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| Format: | Article |
| Language: | English |
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Association of Chemical Engineers of Serbia
2019-01-01
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| Series: | Hemijska Industrija |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0367-598X/2019/0367-598X1900035P.pdf |
| _version_ | 1818128518423248896 |
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| author | Parmoon Gholamhossein Nafchi Abdorreza Mohammadi Pirdashti Mohsen |
| author_facet | Parmoon Gholamhossein Nafchi Abdorreza Mohammadi Pirdashti Mohsen |
| author_sort | Parmoon Gholamhossein |
| collection | DOAJ |
| description | Phase diagrams and liquid – liquid equilibrium (LLE) data for aqueous two-phase systems (ATPSs) containing zinc sulfate, magnesium sulfate or aluminium sulfate and polyethylene glycols PEG 300, 400 and 600 have been determined at 298.15 K. It was attempted to show how the PEG molecular weight and the type of cation influence the binodal curve, tie line length (TLL) and slope of the tie line (STL). The results have shown that as the PEG molecular weight increases, the two-phase region becomes extended and the binodal curve shifts to the origin. The refractive index and density of ternary (PEG 300,400 and 600 + zinc sulfate/magnesium sulfate/aluminium sulfate + water) systems have been measured to achieve the phase composition and the tie lines. Finally, the effective excluded volume (EEV) model was applied to describe the salting-out ability of the systems. The LLE data from this research may be potentially used for recovering biological molecules like proteins. |
| first_indexed | 2024-12-11T07:34:31Z |
| format | Article |
| id | doaj.art-5f683d1e9735483a8dcd58e9099610d5 |
| institution | Directory Open Access Journal |
| issn | 0367-598X 2217-7426 |
| language | English |
| last_indexed | 2024-12-11T07:34:31Z |
| publishDate | 2019-01-01 |
| publisher | Association of Chemical Engineers of Serbia |
| record_format | Article |
| series | Hemijska Industrija |
| spelling | doaj.art-5f683d1e9735483a8dcd58e9099610d52022-12-22T01:15:44ZengAssociation of Chemical Engineers of SerbiaHemijska Industrija0367-598X2217-74262019-01-0173637538510.2298/HEMIND191003035P0367-598X1900035PEffects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol + sulfate salts aqueous two-phase systemsParmoon Gholamhossein0Nafchi Abdorreza Mohammadi1Pirdashti Mohsen2Department of Chemical Engineering, Damghan Branch, Islamic Azad University, Damghan, IranSchool of Industrial Technology, Universiti Sains Malaysia, Penang, Malaysia + Department of Chemical Engineering, Damghan Branch, Islamic Azad University, Damghan, IranFaculty of Chemical Engineering, Shomal University, Amol, IranPhase diagrams and liquid – liquid equilibrium (LLE) data for aqueous two-phase systems (ATPSs) containing zinc sulfate, magnesium sulfate or aluminium sulfate and polyethylene glycols PEG 300, 400 and 600 have been determined at 298.15 K. It was attempted to show how the PEG molecular weight and the type of cation influence the binodal curve, tie line length (TLL) and slope of the tie line (STL). The results have shown that as the PEG molecular weight increases, the two-phase region becomes extended and the binodal curve shifts to the origin. The refractive index and density of ternary (PEG 300,400 and 600 + zinc sulfate/magnesium sulfate/aluminium sulfate + water) systems have been measured to achieve the phase composition and the tie lines. Finally, the effective excluded volume (EEV) model was applied to describe the salting-out ability of the systems. The LLE data from this research may be potentially used for recovering biological molecules like proteins.http://www.doiserbia.nb.rs/img/doi/0367-598X/2019/0367-598X1900035P.pdfliquid-liquid equilibriumsalting-outdensity |
| spellingShingle | Parmoon Gholamhossein Nafchi Abdorreza Mohammadi Pirdashti Mohsen Effects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol + sulfate salts aqueous two-phase systems Hemijska Industrija liquid-liquid equilibrium salting-out density |
| title | Effects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol + sulfate salts aqueous two-phase systems |
| title_full | Effects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol + sulfate salts aqueous two-phase systems |
| title_fullStr | Effects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol + sulfate salts aqueous two-phase systems |
| title_full_unstemmed | Effects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol + sulfate salts aqueous two-phase systems |
| title_short | Effects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol + sulfate salts aqueous two-phase systems |
| title_sort | effects of the polymer molecular weight and type of cation on phase diagrams of polythylene glycol sulfate salts aqueous two phase systems |
| topic | liquid-liquid equilibrium salting-out density |
| url | http://www.doiserbia.nb.rs/img/doi/0367-598X/2019/0367-598X1900035P.pdf |
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