Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures
Abstract: 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) degrees C. The binodal curve was fitted to three different empirical equations rela...
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| Format: | Article |
| Language: | English |
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AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
2008
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| Online Access: | http://scholars.utp.edu.my/id/eprint/2825/ http://scholars.utp.edu.my/id/eprint/2825/2/Liquid-liquid-equilibrium-of-poly%28ethylene-glycol%29-4000-diammonium-hydrogen-phosphate-water-at-different-temperatures_2008_Journal-of-Chemical-and-Engineering-Data.pdf |
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| author | Samuthira Pandian, Amaresh Shreela, Murugesan Iyyaswami, Regupathi Thanapalan, Murugesan |
| author_facet | Samuthira Pandian, Amaresh Shreela, Murugesan Iyyaswami, Regupathi Thanapalan, Murugesan |
| author_sort | Samuthira Pandian, Amaresh |
| building | UTP Institutional Repository |
| collection | Online Access |
| description | Abstract: 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) degrees 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) degrees C. |
| first_indexed | 2025-11-13T07:28:26Z |
| format | Article |
| id | oai:scholars.utp.edu.my:2825 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:28:26Z |
| publishDate | 2008 |
| publisher | AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:scholars.utp.edu.my:28252017-01-19T08:26:12Z http://scholars.utp.edu.my/id/eprint/2825/ Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures Samuthira Pandian, Amaresh Shreela, Murugesan Iyyaswami, Regupathi Thanapalan, Murugesan TP Chemical technology Abstract: 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) degrees 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) degrees C. AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA 2008-07 Article PeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/2825/2/Liquid-liquid-equilibrium-of-poly%28ethylene-glycol%29-4000-diammonium-hydrogen-phosphate-water-at-different-temperatures_2008_Journal-of-Chemical-and-Engineering-Data.pdf Samuthira Pandian, Amaresh and Shreela, Murugesan and Iyyaswami, Regupathi and Thanapalan, Murugesan (2008) Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures. JOURNAL OF CHEMICAL AND ENGINEERING DATA , 53 (7 ). 1574-1578 . ISSN 0021-9568 http://apps.isiknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=19&SID=X212JDdPAc7358p5C3D&page=1&doc=1 10.1021/je800118c 10.1021/je800118c |
| spellingShingle | TP Chemical technology Samuthira Pandian, Amaresh Shreela, Murugesan Iyyaswami, Regupathi Thanapalan, Murugesan Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures |
| title | Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures |
| title_full | Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures |
| title_fullStr | Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures |
| title_full_unstemmed | Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures |
| title_short | Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures |
| title_sort | liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures |
| topic | TP Chemical technology |
| url | http://scholars.utp.edu.my/id/eprint/2825/ http://scholars.utp.edu.my/id/eprint/2825/ http://scholars.utp.edu.my/id/eprint/2825/ http://scholars.utp.edu.my/id/eprint/2825/2/Liquid-liquid-equilibrium-of-poly%28ethylene-glycol%29-4000-diammonium-hydrogen-phosphate-water-at-different-temperatures_2008_Journal-of-Chemical-and-Engineering-Data.pdf |