Search: onr:"swepub:oai:DiVA.org:ltu-47140" >
Molar enthalpy of m...
Molar enthalpy of mixing and refractive indices of choline chloride-based deep eutectic solvents with water
-
- Ma, Chunyan (author)
- Luleå tekniska universitet,Energivetenskap,College of Chemical Engineering, Nanjing Tech University
-
- Guo, Yanhua (author)
- College of Chemical Engineering, Nanjing Tech University
-
- Li, Dongxue (author)
- College of Chemical Engineering, Nanjing Tech University
-
show more...
-
- Zong, Jianpeng (author)
- College of Chemical Engineering, Nanjing Tech University
-
- Ji, Xiaoyan (author)
- Luleå tekniska universitet,Energivetenskap
-
- Liu, Chang (author)
- College of Chemical Engineering, Nanjing Tech University
-
show less...
-
(creator_code:org_t)
- Elsevier, 2017
- 2017
- English.
-
In: Journal of Chemical Thermodynamics. - : Elsevier. - 0021-9614 .- 1096-3626. ; 105, s. 30-36
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The molar enthalpies of mixing were measured for binary systems of choline chloride-based deep eutectic solvents (glycerol, ethylene glycol and malonic acid) with water at 298.15 K and 308.15 K, and atmospheric pressure with an isothermal calorimeter. Refractive indices were also measured at 303.15 K and atmospheric pressure. The binary mixtures of {chcl/glycerol (1:2) + water, chcl/ethylene glycol (1:2) + water} showed exothermic behaviour over the entire range of composition, while the binary mixture of {chcl/malonic acid (1:1) + water} showed endothermic behaviour at first and then changed to be exothermic with the increasing content of chcl/malonic acid (1:1). Experimental refractive indices were fitted with the Redlich–Kister equation, and experimental molar enthalpies of mixing were correlated with the Redlich–Kister equation and the non-random two-liquid (NRTL) model. The NRTL model with the fitted parameters was used to predict the vapour pressures of these three mixtures. For mixtures of {chcl/glycerol (1:2) + water} and {chcl/ethylene glycol (1:2) + water}, the predicted vapour pressures agreed well with the experimental reults from the literature. While for mixture of {chcl/malonic acid (1:1)+water}, the predicted vapour pressures showed deviation at the high concentration of chcl/malonic acid (1:1), and this was probably because of the complex molecular interaction between chcl/malonic acid (1:1) and water
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Energiteknik
- Energy Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database