Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems
Densities and viscosities of aqueous solutions of polyethylene glycol 4000 [mass fraction from (5 to 50) %] have been measured at different temperatures, (298.15, 303.15, 308.15, 313.15, and 318.15) K. The density data show a linear variation with mass fraction of the polymer for all temperatures....
| Main Authors: | , |
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| Format: | Citation Index Journal |
| Language: | English |
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2009
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| Online Access: | http://scholars.utp.edu.my/id/eprint/528/ http://scholars.utp.edu.my/id/eprint/528/1/paper.pdf |
| _version_ | 1848659006684397568 |
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| author | M., Perumalsamy T., Murugesan |
| author_facet | M., Perumalsamy T., Murugesan |
| author_sort | M., Perumalsamy |
| building | UTP Institutional Repository |
| collection | Online Access |
| description | Densities and viscosities of aqueous solutions of polyethylene glycol 4000 [mass fraction from (5 to 50) %] have been measured at different temperatures, (298.15, 303.15, 308.15, 313.15, and 318.15) K. The density data show a linear variation with mass fraction of the polymer for all temperatures. The viscosity data of PEG 4000 solutions were correlated as a function of mass fraction, using a nonlinear equation, for the five different temperatures covered in the present work. Densities, viscosities, and liquid - liquid equilibria of polyethylene glycol - sodium citrate two-phase systems have been measured and are correlated with compositions at (298.15, 308.15, and 318.15) K. The effect of tie line lengths on density and viscosity of the aqueous two-phase systems has also been represented. The tie lines were correlated using the Othmer - Tobias and Bancraft equations as well as the virial equation. The coefficients were estimated and reported. The mean deviations between the experimental and calculated equilibrium compositions in the top and bottom phases were < 1 %. © 2009 American Chemical Society.
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| first_indexed | 2025-11-13T07:23:34Z |
| format | Citation Index Journal |
| id | oai:scholars.utp.edu.my:528 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:23:34Z |
| publishDate | 2009 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:scholars.utp.edu.my:5282017-01-19T08:25:47Z http://scholars.utp.edu.my/id/eprint/528/ Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems M., Perumalsamy T., Murugesan TP Chemical technology Densities and viscosities of aqueous solutions of polyethylene glycol 4000 [mass fraction from (5 to 50) %] have been measured at different temperatures, (298.15, 303.15, 308.15, 313.15, and 318.15) K. The density data show a linear variation with mass fraction of the polymer for all temperatures. The viscosity data of PEG 4000 solutions were correlated as a function of mass fraction, using a nonlinear equation, for the five different temperatures covered in the present work. Densities, viscosities, and liquid - liquid equilibria of polyethylene glycol - sodium citrate two-phase systems have been measured and are correlated with compositions at (298.15, 308.15, and 318.15) K. The effect of tie line lengths on density and viscosity of the aqueous two-phase systems has also been represented. The tie lines were correlated using the Othmer - Tobias and Bancraft equations as well as the virial equation. The coefficients were estimated and reported. The mean deviations between the experimental and calculated equilibrium compositions in the top and bottom phases were < 1 %. © 2009 American Chemical Society. 2009 Citation Index Journal NonPeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/528/1/paper.pdf M., Perumalsamy and T., Murugesan (2009) Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems. [Citation Index Journal] http://www.scopus.com/inward/record.url?eid=2-s2.0-65449168393&partnerID=40&md5=8c0f92fd3646c5dd5b54f18940150ff4 10.1021/je801004n 10.1021/je801004n 10.1021/je801004n |
| spellingShingle | TP Chemical technology M., Perumalsamy T., Murugesan Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems |
| title | Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems |
| title_full | Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems |
| title_fullStr | Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems |
| title_full_unstemmed | Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems |
| title_short | Phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems |
| title_sort | phase compositions, molar mass, and temperature effect on densities, viscosities, and liquid-liquid equilibrium of polyethylene glycol and salt-based aqueous two-phase systems |
| topic | TP Chemical technology |
| url | http://scholars.utp.edu.my/id/eprint/528/ http://scholars.utp.edu.my/id/eprint/528/ http://scholars.utp.edu.my/id/eprint/528/ http://scholars.utp.edu.my/id/eprint/528/1/paper.pdf |