نتایج جستجو برای: thermoregulated ionic liquid biphasic system

تعداد نتایج: 2455607  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
soleiman bahar razieh zakerian

in this study, we combined ionic liquid-based dispersive liquid liquid micro extraction (il-dllme) with faas for determining the palladium in different real samples at the trace level. 1-hexyl-3-methylimidazolium hexafluorophosphate [hmim][pf6] ionic liquid and 1-(2-pyridylazo) 2-naphthol (pan), were chosen as the extraction solvent and the chelating agent, respectively. the hydrophobic pd–pan ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
guangxiu mao anfeng zhu

in this paper, aggregation behaviors of aqueous solutions of short chain hydrophilic ionic liquids (ils), 1 – allyl - 3 - methylimidazolium chloride ([amim]cl), 1 - ethyl - 3 - methylimidazolium chloride ([emim]cl), 1 - butyl - 3 - methylimidazolium chloride ([bmim]cl), 1 - butyl - 3 - methylimidazolium tetrafluoroborate ([bmim]bf4) were investigated using conductivity and laser light scatterin...

Journal: :physical chemistry research 2015
mohammad hasan vakili ehsan sanjari zahra jali

in recent years there has been a great deal of attention paid by researchers in investigating ionic liquids (ils) mainly due to the tremendous potential that ionic liquids have in reaction and separation technology. sonic speed is an important thermodynamic property of ionic liquids (ils) and always chosen as a source to determine other properties. a database for the sonic speed of pure ils cre...

Journal: :iranian journal of catalysis 2014
esmayeel abbaspour-gilandeh seyyedeh cobra azimi

the ionic liquid li(ohch2ch2nh2)(cf3oac) was found to efficiently catalyze the three-component reaction between different enols, aldehydes, and malononitrile , leading to rapid synthesis of 2-amino-4h-chromene derivatives in fairly high yields. the catalyst is easily prepared, highly stable, simple to handle and recycled for several times without significant loss of activity. the method is simp...

Journal: :physical chemistry and electrochemistry 0
elham eslami department of chemistry, kazerun branch, islamic azad university, kazerun, iran fatemeh farjami bdepartment of chemistry, science and research branch, islamic azad university, fars, iran

a carbon nanocomposite electrode has been designed by incorporation of montmorillonite nanoclayinto the carbon ionic liquid electrode for the electrochemical determination of amitriptiline . the surface ofthe proposed electrode was characterized by scanning electron microscopy. the presence of ionic liquid asa binder is believed to be responsible for the electrocatalytic activity of the propose...

Journal: :journal of the iranian chemical research 0
ming lu chemical engineering college, nanjing university of sciece & technology, nanjing 210094, china xiaobing liu chemical engineering college, nanjing university of sciece & technology, nanjing 210094, china yu wang chemical engineering college, nanjing university of sciece & technology, nanjing 210094, china

an efficient protocol for the selective oxidation of primary alcohols to aldehydes withh5io6/v2o5 in ionic liquid [bmpy][pf6] has been developed. high yields of the products, mildreaction conditions and simple experimental procedure make this protocol complementary tothe existing methods. the catalyst can be reused for several times without obvious loss of thecatalytic activity.

ژورنال: مواد پرانرژی 2014

.Energetic ionic liquids compared to conventional high energy compounds, such as TNT, HMX and RDX has a low vapor pressure, high thermal stability and adjustable chemical and physical properties and high being liquid range. A new class of ionic salts that have a large number of nitrogen on their structure have distinctive characteristics such as high heat of formation and high viscosity, comp...

ژورنال: مواد پرانرژی 2016

Some mono and di imidazolium-based ionic liquids with dicyanamide were synthesized and characterized. The synthesis of these compoundes were done based on alkylation reaction of N-methylimidazole followed by anion exchange. The structure of novel ionic liquids were identified by using FT-IR, 1HNMR spectroscopies and elemental analysis. Among the synthesized ionic liquids, thermal properties of ...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2008
Keiji Kidani Naoki Hirayama Hisanori Imura

The extraction behavior of several divalent metal cations (M(2+)) in ionic liquid chelate extraction systems was investigated using several 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ionic liquids ([Rmim][Tf(2)N]) as extraction solvent and thenoyltrifluoroacetone (Htta) as extractant. The behavior was compared with that using less hydrophobic 1-alkyl-3-methylimidazolium hexa...

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