Deviation of polarity from linearity in liquid mixtures containing an ionic liquid

2015 ◽  
Vol 17 (47) ◽  
pp. 31613-31617 ◽  
Author(s):  
Vijay Beniwal ◽  
Shashi K. Shukla ◽  
Anil Kumar

The physico-chemical properties of liquid mixtures, in general, exhibit deviations from linear behaviour with respect to their composition, arising out of different types of cross-intermolecular interactions (both specific and non-specific).

2016 ◽  
Vol 18 (34) ◽  
pp. 23853-23863 ◽  
Author(s):  
Vijay Beniwal ◽  
Anil Kumar

Physico-chemical properties of liquid mixtures in general display large deviations from linear behaviour, arising out of complex specific and non-specific intermolecular interactions.


Processes ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 792
Author(s):  
Nurul Izzah Khalid ◽  
Nurul Shaqirah Sulaiman ◽  
Norashikin Ab Aziz ◽  
Farah Saleena Taip ◽  
Shafreeza Sobri ◽  
...  

Electrolyzed water (EW) shows great potential as a green and economical sanitation solution for the food industry. However, only limited studies have investigated the optimum electrolysis parameters and the bactericidal effect of acidic electrolyzed water (AcEW) and alkaline electrolyzed water (AlEW). Here, the Box–Behnken experimental design was used to identify the optimum parameters. The tests were conducted with different types of electrodes, electrical voltages, electrolysis times, and NaCl concentrations. There were no obvious differences observed in the physico-chemical properties of EW when different electrodes were used. However, stainless steel was chosen as it meets most of the selection criteria. The best-optimized conditions for AcEW were at 11.39 V, 0.65 wt.% NaCl, and 7.23 min, while the best-optimized conditions for AlEW were at 10.32 V, 0.6 wt.% NaCl, and 7.49 min. The performance of the optimum EW (AcEW and AlEW) compared with commercial cleaning detergents for the food industry was then evaluated. The bactericidal activity of AcEW and AlEW was examined against Escherichia coli ATCC 10536 at different temperatures (30 °C and 50 °C) for 30 s. The results show that both AcEW and AlEW have the ability to reduce the Escherichia coli to non-detectable levels (less than 2 log CFU/mL).


2013 ◽  
Vol 675 ◽  
pp. 248-251
Author(s):  
Zhuo Li ◽  
Chang Ping Li

As a new environmentally friendly solvent, ionic liquids have been investigated widely. The lack of physico-chemical properties data of ionic liquids has become a bottleneck that restricts their applications. In this study, the investigation of the density for binary mixtures of CnpyNTf2 (n = 2, 4, 5) and methanol is measured using Westphal balance. This study would be very important for the application of binary mixtures of ionic liquid and methanol in developing new energy storage material.


2014 ◽  
Vol 16 (7) ◽  
pp. 3463-3471 ◽  
Author(s):  
Karolina Matuszek ◽  
Anna Chrobok ◽  
Fergal Coleman ◽  
Kenneth R. Seddon ◽  
Małgorzata Swadźba-Kwaśny

The speciation of a family of inexpensive, easily prepared protonic ionic liquids, their physico-chemical properties and their performance as catalysts in the model esterification reaction have been correlated.


2012 ◽  
Vol 6 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Yanjie Tong ◽  
Qijun Wang ◽  
Yafan Bi ◽  
Mingke Lei ◽  
Yezi Lv ◽  
...  

In order to evaluate the influence of ionic liquid 1- butyl-3-methylimidazolium chloride ([Bmim]Cl) on the soil micro-ecological system, the toxicity of [Bmim]Cl to soil microorganisms and its impact on soil physico-chemical properties were investigated. Three soil samples, which were taken from the rape land, nursery land and the broad bean land respectively, were used for this study. The toxicity test results show that the [Bmim]Cl inhibited the growth of soil microorganisms including bacteria and actinomycetes. This inhibition became stronger with the [Bmim]Cl concentration increasing. The EC50 of soil bacteria was close to that of the Vibrio fischeri, and the EC50 of soil actinomycetes was near to that of the Pseudokirchneriella subcapitata. The soil physico-chemical properties test results indicate that the organic mass and the soluble salts in soil increased with the increase of the [Bmim]Cl concentration. The [Bmim]Cl also caused the pH change in the soil micro-ecological system. It suggests that the ionic liquid [Bmim]Cl would influence the soil micro- ecological system by inhibiting the growth of soil microorganisms and altering the soil physico-chemical properties when it contaminated the soil system.


2020 ◽  
Vol 305 ◽  
pp. 00059
Author(s):  
Csaba Lorinţ ◽  
Eugen Traistă ◽  
Adrian Florea

There are several situations in which it is necessary to clarify the types of coal that enter into the composition of mixtures: technical expertise and/or establishing the nature of some coal wastes, often from old stockpiles, in order to eliminate them. The proposed method is based on the identification and description of those mineralogical-petrographic and physico-chemical properties whose pursuit can lead to a diagnosis in differentiation of coal types. Systematic analysis involves in the first stage the identification of the different types of coal present in the sample by mineralogical analysis. From the sample subjected to mineralogical analysis, granules are extracted from the different types of coal present in the sample and the characteristics defining them are determined: moisture and hygroscopic moisture content, volatile matter content, fixed carbon content, agglutination characteristics, etc. Further, the characteristics of the mixtures are determined on another part of the sample and their structure is determined by algebraic methods.


2009 ◽  
Vol 283 (1-2) ◽  
pp. 93-96 ◽  
Author(s):  
Shu-liang Zang ◽  
Da-Wei Fang ◽  
Jian-xin Li ◽  
Yu-Yang Zhang ◽  
Shuang Yue

2012 ◽  
Vol 57 (3) ◽  
pp. 1208-1212 ◽  
Author(s):  
Huaiyou Wang ◽  
Yongzhong Jia ◽  
Xiaohua Wang ◽  
Jun Ma ◽  
Yan Jing

RSC Advances ◽  
2016 ◽  
Vol 6 (66) ◽  
pp. 61566-61575 ◽  
Author(s):  
A. Vasanthakumar ◽  
I. Bahadur ◽  
G. Redhi ◽  
R. M. Gengan

Important physico-chemical properties of ionic liquids (ILs) can be manipulated by adjusting the nature of the cation or anion.


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