Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures
Liquid-liquid equilibrium for an aqueous two-phase system containing poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water was studied at four different temperatures of (25, 30, 35, and 45)°C. The binodal curve was fitted to three different empirical equations relating the concentration...
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| Format: | Citation Index Journal |
| Language: | English |
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2008
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| Online Access: | http://scholars.utp.edu.my/id/eprint/575/ http://scholars.utp.edu.my/id/eprint/575/1/paper.pdf |
| _version_ | 1848659011652550656 |
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| author | S.P., Amaresh S., Murugesan I., Regupathi T., Murugesan |
| author_facet | S.P., Amaresh S., Murugesan I., Regupathi T., Murugesan |
| author_sort | S.P., Amaresh |
| building | UTP Institutional Repository |
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| description | Liquid-liquid equilibrium for an aqueous two-phase system containing poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water was studied at four different temperatures of (25, 30, 35, and 45)°C. The binodal curve was fitted to three different empirical equations relating the concentrations of PEG 4000 and diammonium hydrogen phosphate, and the coefficients were estimated for the respective temperatures for all three equations. The effective excluded volume values were obtained from the binodal model for the present system, and salting-out ability of the salt was discussed. Tie line compositions were correlated using the Othmer-Tobias and Bancroft equations, and the parameters are also reported. Further, the experimental binodal data of the poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water system were compared to poly(ethylene glycol) 6000 + diammonium hydrogen phosphate + water for (25, 35, and 45)°C. © 2008 American Chemical Society.
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| first_indexed | 2025-11-13T07:23:39Z |
| format | Citation Index Journal |
| id | oai:scholars.utp.edu.my:575 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:23:39Z |
| publishDate | 2008 |
| recordtype | eprints |
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| spelling | oai:scholars.utp.edu.my:5752017-01-19T08:26:43Z http://scholars.utp.edu.my/id/eprint/575/ Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures S.P., Amaresh S., Murugesan I., Regupathi T., Murugesan TP Chemical technology Liquid-liquid equilibrium for an aqueous two-phase system containing poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water was studied at four different temperatures of (25, 30, 35, and 45)°C. The binodal curve was fitted to three different empirical equations relating the concentrations of PEG 4000 and diammonium hydrogen phosphate, and the coefficients were estimated for the respective temperatures for all three equations. The effective excluded volume values were obtained from the binodal model for the present system, and salting-out ability of the salt was discussed. Tie line compositions were correlated using the Othmer-Tobias and Bancroft equations, and the parameters are also reported. Further, the experimental binodal data of the poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water system were compared to poly(ethylene glycol) 6000 + diammonium hydrogen phosphate + water for (25, 35, and 45)°C. © 2008 American Chemical Society. 2008 Citation Index Journal PeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/575/1/paper.pdf S.P., Amaresh and S., Murugesan and I., Regupathi and T., Murugesan (2008) Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures. [Citation Index Journal] http://www.scopus.com/inward/record.url?eid=2-s2.0-51949095562&partnerID=40&md5=959fbf86b83908e7d19da8a1726c9102 10.1021/je800118c 10.1021/je800118c 10.1021/je800118c |
| spellingShingle | TP Chemical technology S.P., Amaresh S., Murugesan I., Regupathi T., Murugesan Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures |
| title | Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures |
| title_full | Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures |
| title_fullStr | Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures |
| title_full_unstemmed | Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures |
| title_short | Liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures |
| title_sort | liquid-liquid equilibrium of poly(ethylene glycol) 4000 + diammonium hydrogen phosphate + water at different temperatures |
| topic | TP Chemical technology |
| url | http://scholars.utp.edu.my/id/eprint/575/ http://scholars.utp.edu.my/id/eprint/575/ http://scholars.utp.edu.my/id/eprint/575/ http://scholars.utp.edu.my/id/eprint/575/1/paper.pdf |