نتایج جستجو برای: chemical liquids

تعداد نتایج: 397571  

Journal: :Scientific reports 2015
K Grzybowska A Grzybowski Z Wojnarowska J Knapik M Paluch

Ionic liquids (ILs) constitute an active field of research due to their important applications. A challenge for these investigations is to explore properties of ILs near the glass transition temperature Tg, which still require our better understanding. To shed a new light on the issues, we measured ILs and their base counterparts using the temperature modulated calorimetry. We performed a compa...

Journal: :Physical chemistry chemical physics : PCCP 2015
Weihong Wu Yunxiang Lu Hairong Ding Changjun Peng Honglai Liu

Metal-containing ionic liquids (ILs) have been recognized as potential solvents, catalysts, catalyst precursors and reagents for many organic processes. In this work, several quantum-chemical parameters, including the surface electrostatic potential (Vs,max and Vs,min), the lowest surface average local ionization energy (I̅s,min), and the electrostatic potential at the position of an atom (EPnuc...

Journal: :The Journal of chemical physics 2005
K L Yung Lan He Yan Xu Y W Shen

Related Articles Monte Carlo study of four dimensional binary hard hypersphere mixtures J. Chem. Phys. 136, 014506 (2012) Energy relaxation of intermolecular motions in supercooled water and ice: A molecular dynamics study J. Chem. Phys. 135, 244511 (2011) The role of the isothermal bulk modulus in the molecular dynamics of super-cooled liquids J. Chem. Phys. 135, 244508 (2011) Experimental evi...

Journal: :Journal of chemical information and computer sciences 2002
Alan R. Katritzky Ritu Jain Andre Lomaka Ruslan Petrukhin Mati Karelson Ann E. Visser Robin D. Rogers

The melting points of several imidazolium-based ionic liquids or ionic liquid analogues were correlated using the CODESSA program in order to develop predictive tools for determination of suitable ionic liquid salts. The data set consisted of melting point data (degrees C) for 104 substituted imidazolium bromides divided on the basis of the N-substituents into three subsets: A-57 compounds, B-2...

Journal: :Physical chemistry chemical physics : PCCP 2016
Emmy C Wijaya Frances Separovic Calum J Drummond Tamar L Greaves

Many ionic liquids and low molecular weight polar solvents have been reported to support amphiphile self-assembly, with most of these reported for the first time in the last decade. This phenomenon is attributed to the solvophobic effect (analogous to the hydrophobic effect in water). However, to date there has been no systematic study which evaluates micelle formation in a large library of non...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2013
Lang G Chen Harry Bermudez

The aggregation and interfacial behavior of mixtures of anionic (sodium dodecylsulfate, SDS) and cationic (dodecylammonium bromide, DTAB) surfactants were investigated. A room-temperature ionic liquid (IL) was explored as a solvent for the SDS/DTAB system and compared to water. The critical micelle concentration (cmc) and composition in mixed micelles were determined for both solvents. Our expe...

Journal: :Chemical communications 2012
Hugo Cruz Markus Fanselow John D Holbrey Kenneth R Seddon

Using in situ viscosity measurement, the rate of cellulose dissolution in a number of ionic liquids has been determined allowing their performance as solvents to be quantitatively assessed. 1-Butyl-3-methylimidazolium ethanoate was shown to dissolve cellulose faster than analogous ionic liquids with chloride or dimethylphosphate anions. Analysis of the data highlights the influence of both anio...

Journal: :E3S web of conferences 2023

A hydrocyclone is a centrifugal classifier that separates particles by size using force. Applications for hydrocyclones are incredibly varied. It used to separate solids from liquids, liquids and gases liquids. easy install use, simple, inexpensive, low maintenance. serves as the brain of mineral processing plant process water in important sectors textile, petroleum, chemical, paper, agricultur...

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