Abstract This article is the second of three projected IUPAC Technical Reports on reference materials for phase equilibrium studies. The goal this project was to select systems with critically evaluated property values verification instruments and techniques used in studies mixtures. report proposes seven solid–liquid studies, covering four most common categories binary mixtures: aqueous organi...

vapor-liquid equilibrium in nh3-co2-h2o system at high pressures has been studied. the uniquac-nrf model for this system was extended by using the goppert 4 maurer reported datas. since the system contains molecules and ionic species the binary interaction parameters considered, where those are of molecule-molecule, molecule-ion and ion-ion types. these interaction parameters are taken as const...

traditional systems for olefin/paraffin separation, like low-temperature distillation, are expensive and very energy consuming, and therefore, alternative separation methods are desired. facilitated transport membranes are new tools for this separation to be substituted in large scale separation of olefin-paraffin mixtures. to design a membrane process for olefin-paraffin separation, equilibriu...

Applications of the interface-selective methods of second harmonic (SHG) and sum frequency (SFG) spectroscopy to the investigation of equilibrium and time-dependent properties of interfaces are increasing at an explosive rate.1-53 Among the interfaces studied with these methods are liquid/ gas, solid/gas, and the buried liquid/liquid, liquid/solid, and solid/solid interfaces.35,36,39,41,51,53 I...

Guanidine hydrochloride has been widely used in the initial recovery steps of active protein from the inclusion bodies in aqueous two-phase system (ATPS). The knowledge of the guanidine hydrochloride effects on the liquid-liquid equilibrium (LLE) phase diagram behavior is still inadequate and no comprehensive theory exists for the prediction of the experimental trends. Therefore the effect the ...

Effect of Seaweed Liquid Extract (SLE) of Caulerpa scalpelliformis on growth and biochemical constituents of Vigna mungo was studied. The lower concentration of SLE of C. scalpelliformis (25%) enhanced the percentage of germination, shoot length, root length and biochemical constituents viz., chlorophyll, carotenoid, amino acid, reducing sugar and total sugar contents and α-amylase and β-amylas...