Densities and Viscosities of Poly(ethylene glycol) 4000+Diammonium Hydrogen Phosphate plus Water Systems

被引:12
作者
Regupathi, Iyyaswami [2 ]
Murugesan, Shreela [3 ]
Amaresh, Samuthira Pandian [4 ]
Govindarajan, Rajendran [4 ]
Thanabalan, Murugesan [1 ]
机构
[1] Univ Teknol PETRONAS, Dept Chem Engn, Tronoh 31750, Perak, Malaysia
[2] Natl Inst Technol Karnataka, Dept Chem Engn, Surathkal 575025, India
[3] Anna Univ, Ctr Biotechnol, Madras 600025, Tamil Nadu, India
[4] Anna Univ, AC Coll Technol, Dept Chem Engn, Madras 600025, Tamil Nadu, India
关键词
LIQUID-LIQUID EQUILIBRIA; AQUEOUS 2-PHASE SYSTEMS; POLYETHYLENE-GLYCOL; DEGREES-C; CITRATE; TEMPERATURES; MIXTURES;
D O I
10.1021/je800769c
中图分类号
O414.1 [热力学];
学科分类号
摘要
The densities and viscosities of binary and ternary solutions of the poly(ethylene glycol) 4000 (PEG4000) + diammonium hydrogen phosphate + water system were determined at different temperatures [(298.15, 303.15, 308.15, 313.15, and 318.15) K]. The measured density and viscosity data of all the binary and tertiary systems were fitted to available empirical correlations, for the corresponding temperatures. The density data show a linear variation with mass fraction of the polymer for all temperatures. The viscosity data of all the solutions were correlated as a function of their mass fraction, using a nonlinear equation, for the five different temperatures covered in the present work. Densities and viscosities of PEG4000-diammonium hydrogen phosphate two-phase systems have been measured at (298.15, 303.15, 308.15, 313.15, and 318.15) K. The tie line lengths (TLL) of the aqueous two-phase systems have also been estimated, and the effect of the physical properties on the TLL is also reported.
引用
收藏
页码:1100 / 1106
页数:7
相关论文
共 17 条
[1]  
Albertsson P.A., 1986, PARTITION CELL PARTI
[2]   Liquid-liquid equilibrium of poly(ethylene glycol) 4000+diammonium hydrogen phosphate plus water at different temperatures [J].
Amaresh, Samuthira Pandian ;
Murugesan, Shreela ;
Regupathi, Iyyaswami ;
Murugesan, Thanapalan .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2008, 53 (07) :1574-1578
[3]   PEPTIDE HYDROPHOBICITY AND PARTITIONING IN POLY(ETHYLENE GLYCOL) MAGNESIUM-SULFATE AQUEOUS 2-PHASE SYSTEMS [J].
EITEMAN, MA ;
GAINER, JL .
BIOTECHNOLOGY PROGRESS, 1990, 6 (06) :479-484
[4]   Densities of poly(ethylene glycol) plus water mixtures in the 298.15-328.15 K temperature range [J].
Eliassi, A ;
Modarress, H .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1998, 43 (05) :719-721
[5]   Viscosity of aqueous solutions of poly(ethylene glycol)s at 298.15 K [J].
Kirincic, S ;
Klofutar, C .
FLUID PHASE EQUILIBRIA, 1999, 155 (02) :311-325
[6]   Extractive cultivation of Lactococcus lactis using a polyethylene glycol/MgSO4•7H2O aqueous two-phase system to produce nisin [J].
Li, C ;
Fan, OY ;
Bai, JH .
BIOTECHNOLOGY LETTERS, 2000, 22 (10) :843-847
[7]  
Malanicheva T. G., 2007, Rossiiskii Vestnik Perinatologii i Pediatrii, V52, P59
[8]   DENSITIES AND VISCOSITIES OF POLYETHYLENE-GLYCOL PLUS SALT PLUS WATER-SYSTEMS AT 20 DEGREES-C [J].
MEI, LH ;
LIN, DQ ;
ZHU, ZQ ;
HAN, ZX .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1995, 40 (06) :1168-1171
[9]   Liquid-liquid equilibria of poly(ethylene glycol) 2000+sodium citrate plus water at (25, 30, 35, 40, and 45) °C [J].
Murugesan, T ;
Perumalsamy, M .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2005, 50 (04) :1392-1395
[10]   Densities and viscosities of polyethylene glycol 2000+salt + water systems from (298.15 to 318.15) K [J].
Murugesan, T ;
Perumalsamy, M .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2005, 50 (04) :1290-1293