نتایج جستجو برای: phosphorous ionic liquid

تعداد نتایج: 256273  

Journal: :journal of the iranian chemical research 0
ming lu college of chemical engineering, nanjing university of science and technology, nanjing 210094, pr china hui jiang college of chemical engineering, nanjing university of science and technology, nanjing 210094, pr china

in this work, benzyl alcohol was obtained in 96% excellent yield by hydrolysis of benzyl chloride catalyzedby the recyclable temperature-dependant phase-separation system that comprised the ionic liquid peg1000-dail[bf4], toluene and ferric sulfate under homogeneous catalysis in aqueous media. this novel methodnot only enhanced the yield, but also made the operating units easy workup. the catal...

Journal: :physical chemistry and electrochemistry 0
elham eslami department of chemistry, kazerun branch, islamic azad university, kazerun, iran fatemeh farjam department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran

we used an effective electrochemical sensor for the determination of imipramine at ph 7.2 using a carbon nanocomposite electrode. the electrode has been designed by incorporation of montmorillonite nanoclay into the carbon ionic liquid electrode. the high sensitivity of 1.714 μa (μm)-1, two linear calibration ranges of 0.1–2 μm and 2-40 μm, and detection limit of 19 nm were achieved. the relati...

A simple, novel, efficient and three-component procedure for the synthesis of pyrimido[4,5-d]pyrimidine-2,4-dione derivatives by the reaction of 6-amino-1,3-dimethyluracil, aldehyde and 2-benzylisothiourea hydrochloride promoted by ionic liquid 1-butyl-3-methylimidazolium bromide ([BMIm]Br) under solvent-free conditions is reported. The presented method is benefited from operational simplicity...

Janardhan Banothu Peter Crooks Rajitha Bavantula,

A series of 2-amino pyridine-3-carbinitrile derivatives incorporated coumarin moiety has developed via multicomponent condensation of 3-acetyl-2H-chromen-2-one, arylaldehydes, malononitrile and ammonium acetate utilizing Brønsted acidic ionic liquid, (4-sulfobutyl)tris(4-sulfophenyl)phosphonium hydrogen sulfate as catalyst under solvent-free conditions. Good yields, short reaction times, straig...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2008
Takashi Kakiuchi

Liquid-liquid two-phase systems formed by a hydrophobic ionic liquid and water find several useful ways of application in analytical chemistry. One of the most important properties of such two-phase systems is the mutual solubility of the IL and water. Recent advancements on this subject have been reviewed. The solubility of ionic liquids in water is related to the standard Gibbs energies of th...

Journal: :Journal of Molecular Liquids 2021

This work studies the performance of three phosphonium-based ionic liquids ([P6,6,6,14][BEHP], [P6,6,6,14][TCM] and [P6,6,6,14][DEC]) when used separately as additives on thermal conductivity, stability tribological properties two non-additised greases (a lithium-based a calcium-based grease). The main results confirmed that improved both greases. Only mixtures G1 + 5%[P6,6,6,14][BEHP] G2 5%[P6...

Journal: :physical chemistry research 2014
rahmat sadeghi roonak golabiazar

systematic studies on the vapor-liquid equilibria (vle) and conductometric properties of aqueous solutions of model surface-active ionic liquid 1-dodecyl-3-methylimidazolium bromide ([c12mim]br) are performed in the absence and presence of a large series of electrolytes in order to achieve a deeper understanding about the molecular mechanism behind the specific salt effect on the aggregation be...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
farajollah mohanazadeh sakineh rahimi

n,n-diethylethanaminium-2-(sulfooxy) ethyl sulfate was synthesized and used as  an efficient, green, and recyclable catalyst and solvent for the nitration of aromatic compounds by nitric acid at 80oc

Journal: :international journal of occupational hygiene 0
hamid shirkhanloo iranian petroleum industry occupational and environmental health research center (ipioehrc), iranian petroleum industry health research institute (ipihri), tehran, iran. mahmood osanloo msc student of medical nano technology, islamic azad university of pharmaceutical sciences (iaups),tehran, iran. orkideh qurban-dadras assistant professor of medical chemistry of islamic azad university of pharmaceutical sciences (iaups),tehran, iran.

the aim of this study was to investigate the removal of toluene from air through nano-graphene modified by ionic liquid (ng-il). the batch adsorption experiments in glass bottle of gas chromatography equipped with flame ionization detector (gc-fid) were used. graphene ultrahigh-quality synthesized by substrate-free gas-phase method in a single step and graphene sheets were deposited with ionic-...

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