The solubilities of Cs 2 SO 4 -C 2 H 5 OH-H 2 O ternary system at 30℃and 50℃have been studied using microe-quipment for solubility determination.There appears two phases,alcoh olic phase,water phase in the liquid ph...The solubilities of Cs 2 SO 4 -C 2 H 5 OH-H 2 O ternary system at 30℃and 50℃have been studied using microe-quipment for solubility determination.There appears two phases,alcoh olic phase,water phase in the liquid phase.The solubilities of Cs 2 SO 4 in water,C 2 H 5 OH and mixed solvent have been determ ined.The phase diagram indicated that C 2 H 5 OH might be salted out by Cs 2 SO 4 from this system and the equilibrium solid phase is Cs 2 SO 4 .展开更多
Liquid-liquid equilibrium of the poly （ethylene glycol）（PEG）-Cs2SO4-H2O aqueous two-phase system,with PEG of molecular weigth 1000,4000 and 10000,was measured at 298.15 K.The binodal curves were obtained using a f...Liquid-liquid equilibrium of the poly （ethylene glycol）（PEG）-Cs2SO4-H2O aqueous two-phase system,with PEG of molecular weigth 1000,4000 and 10000,was measured at 298.15 K.The binodal curves were obtained using a four-parameter equation,and the tie lines were satisfactorily described using the Othmer-Tobias and Bancroft equations.These equations were used to develop a mathematical model for interpretation of the equilibrium data of these aqueous two-phase systems（ATPS）.It was found that an increase in the molecular weight of the PEG produced a displacement of the binodal curve toward the origin and decreased the-phase zone.展开更多
文摘The solubilities of Cs 2 SO 4 -C 2 H 5 OH-H 2 O ternary system at 30℃and 50℃have been studied using microe-quipment for solubility determination.There appears two phases,alcoh olic phase,water phase in the liquid phase.The solubilities of Cs 2 SO 4 in water,C 2 H 5 OH and mixed solvent have been determ ined.The phase diagram indicated that C 2 H 5 OH might be salted out by Cs 2 SO 4 from this system and the equilibrium solid phase is Cs 2 SO 4 .
文摘Liquid-liquid equilibrium of the poly （ethylene glycol）（PEG）-Cs2SO4-H2O aqueous two-phase system,with PEG of molecular weigth 1000,4000 and 10000,was measured at 298.15 K.The binodal curves were obtained using a four-parameter equation,and the tie lines were satisfactorily described using the Othmer-Tobias and Bancroft equations.These equations were used to develop a mathematical model for interpretation of the equilibrium data of these aqueous two-phase systems（ATPS）.It was found that an increase in the molecular weight of the PEG produced a displacement of the binodal curve toward the origin and decreased the-phase zone.
