نتایج جستجو برای: infinite dilution

تعداد نتایج: 89750  

Journal: :Physical chemistry chemical physics : PCCP 2011
Sergey P Verevkin Dzmitry H Zaitsau Bo Tong Urs Welz-Biermann

Activity coefficients at infinite dilution of some common solvents in a protic ionic liquid ethylammonium nitrate have been measured using well established gas-chromatography-method. This method was possible to apply due to extremely low vapour pressure of ethylammonium nitrate at temperatures below 100 °C. Activity coefficients and separation factors were compared with those for aprotic ionic ...

Journal: :Pure and Applied Chemistry 2021

Abstract Henry’s law states that the abundance of a volatile solute dissolved in liquid is proportional to its gas phase. It applies at equilibrium and limit infinite dilution solute. For historical reasons, numerous different definitions, names, symbols are used literature express proportionality coefficient, denoted “Henry’s constant”. Here, consistent set recommendations presented. An import...

Journal: :Journal of applied physiology 2005
Werner Lang Rolf Zander

Due to the controversy surrounding the term dilutional acidosis, the classical dilution concept for bicarbonate has been rigorously revised for the prediction of pH, actual bicarbonate concentration, and base excess. In the algorithms derived for buffer solutions, blood, and whole body (1-, 2-, and 3-fluid compartment), only bicarbonate is considered. On dilution at constant Pco(2), the final c...

Journal: :Journal of molecular biology 1969
C W Schmid J E Hearst

The problem of obtaining meaningful molecular weights for high molecular weight DNA samples by sedimentation equilibrium in a density gradient has been solved by correcting the theory for thermodynamio non-ideality. Several different methods of virial corrections are suggested and examined to determine the best method of obtaining molecular weights at infinite dilution. A pronounced virial effe...

2013
Marek Rogalski Ali Modaressi Pierre Magri Fabrice Mutelet Aleksandra Grydziuszko Michał Wlazło Urszula Domańska

The solubility of β-cyclodextrin (β-CD) in ionic liquids (ILs) and the activity coefficients at infinite dilution (γ13(∞)) of more than 20 solutes (alkanes, aromatic hydrocarbons, alcohols) were measured in four chosen ionic liquids, their mixtures with β-CD, and in the β-CD at high temperatures from 338 to 398 K using the inverse gas chromatography. The intermolecular interactions, inclusion c...

2015
Michał Wlazło Andrzej Marciniak Trevor M. Letcher

New data of activity coefficients at infinite dilution, γ13∞, for 65 different solutes including alkanes, alkenes, alkynes, cycloalkanes, aromatic hydrocarbons, alcohols, thiophene, ethers, ketones, aldehydes, esters and water in the ionic liquid 1-ethyl-3-methylimidazolium trifluorotris(perfluoroethyl)phosphate, were determined using inverse gas chromatography within the temperature range from...

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