نتایج جستجو برای: liquid phase

تعداد نتایج: 775987  

Journal: :Physica D: Nonlinear Phenomena 2021

Here we establish the thermodynamic phase stability condition under mesoscale confinement, which is essential in elucidating how confinement of solutions inside a droplet, cell or liposome may influence separation. To clarify affected by external conditions, formal analogy between partially open ensemble and mesoscopic system will be exploited, through nonnegligible role boundary identified as ...

2014
XU LiMei

Water shows anomalies different from most of other materials. Different sceniaros have been proposed to explain water anomalies, among which the liquid-liquid phase transition (LLPT) is the most discussed one. It attributes water anomalies to the existence of a hypothesized liquid-liquid critical point (LLCP) buried deep in the supercooled region. We briefly review the recent experimental and t...

2001
O. K. Matar

Background In a system of two immiscible liquids, usually water (or an aqueous solution) and an organic liquid (e.g. an oil), there are two general types of dispersions which can be formed depending on the conditions of the system. A water-in-oil (W/O) dispersion is a dispersion formed when the aqueous phase is dispersed in the organic phase and an oil-in-water (O/W) dispersion is a dispersion ...

اکبری , جعفر, رضاپور , زینب, سعیدی , مجید,

Background and purpose: Ëmulsion are the systems developed from due ho minimal distribution of a non liquid in onoter liquid and in contrast to micro emulsions, stabilized are non strabilized. Their stability can be increased by increasing surface active agents. Since the amount og surfactant being used and volumic percentage of oil phase can effect the properties of wmulsion. This study was ...

Ahad Ghaemi Mohammad Ghannadi Maragheh Shahrokh Shahhosseini,

In this work, reactive absorption of gases in aqueous electrolyte solutions has been investigated resulting in the development of a procedure in order to calculate the concentrations of ionic and molecular species in the liquid phase. Two duplicate experiments were conducted to investigate simultaneous reactive absorption of ammonia and carbon dioxide in partially carbonated ammonia solutio...

Fereydoon Milani Nejad Hassan Ali Mirshahi Mohammad Rahimizadeh

The catalytic oxidation of toluene to benzoic acid in the liquid phase has been studied in an un-stirred tank reactor. Low concentration of acetic acid was added in order to increase the solubility of the catalyst in toluene. The dependence of the rate of reaction on the concentration of toluene catalyst and oxygen pressure was studied. It has been suggested that liquid phase oxidation of t...

Mohammad Ali Moosavian Nader Hedayat Parissa Khadiv Parsi,

Phase inversion in liquid-liquid dispersions corresponds to the transitional boundary between Oil-in-Aqueous dispersion and Aqueous-in-Oil dispersion. A theoretical model based on simple assumptions was proposed to predict phase inversion point, ambivalence region and the hysteresis effect of inversion. Experimental data from the literature were used to validate the model and results were c...

A simple and efficient homogenous liquid-liquid extraction method performed in a narrow tube combined with dispersive liquid-liquid microextraction method has been presented for the simultaneous determination of two antiepileptic drugs in urine followed by gas chromatography with flame ionization detection. In this method, a mixture of acetonitrile and urine sample (homogenous solution) is load...

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