Diffusion of the carbon dioxide–ethanol mixture in the extended critical region
Literature Information
René Spencer Chatwell, Gabriela Guevara-Carrion, Yuri Gaponenko, Valentina Shevtsova, Jadran Vrabec
The effect of traces of ethanol in supercritical carbon dioxide on the mixture's thermodynamic properties is studied by molecular simulations and Taylor dispersion measurements. This mixture is investigated along the isobar p = 10 MPa in the temperature range between T = 304 and 343 K. Along this path, the mixture undergoes two transitions: First, the Widom line is crossed, marking the transition from liquid-like to gas-like conditions. A second transition occurs from the supercritical gas-like domain to a subcritical gas. The Widom line crossover entails inflection points for most of the studied properties, i.e. density, enthalpy, shear viscosity, Maxwell–Stefan and intradiffusion coefficients. On the other hand, the transition between the super- and subcritical regions is found to be generally smooth, an observation that is qualitatively confirmed by experimental Taylor dispersion measurements. Dedicated atomistic simulations show the presence of microheterogeneities due to ethanol self-association along the investigated path, which lead to the mixture's anomalous behavior in its extended critical region.
Recommended Journals

Accounts of Chemical Research

Journal of the Chinese Chemical Society

Biopolymers

Australian Journal of Chemistry

Canadian Metallurgical Quarterly

Chemical & Pharmaceutical Bulletin

Journal of the American Chemical Society

Corrosion Science

Bulletin of the Chemical Society of Japan

Chemistry of Natural Compounds
Related Literature
Immunoasssay based on the antibody-conjugated PAMAM-dendrimer–gold quantum dot complex
Robert C. Triulzi, Miodrag Micic, Silvia Giordani, Michael Serry, Wen-An Chiou, Roger M. Leblanc
DOI: 10.1039/B611278A
Parallel sheet structure in cyclopropane γ-peptides stabilized by C–H⋯O hydrogen bonds
M. Khurram N. Qureshi, Martin D. Smith
DOI: 10.1039/B611882H
Vancomycin-induced morphological transformation of self-assembled amphiphilic diacetylene supramolecules
Kun Ha Park, Ji-Seok Lee, Hyunwook Park, Eun-Hye Oh, Jong-Man Kim
DOI: 10.1039/B615626F
Exploiting the multifunctionality of organocations in the assembly of hybrid polyoxometalate clusters and networks
Chris Ritchie, Eric M. Burkholder, De-Liang Long, David Adam, Paul Kögerler, Leroy Cronin
DOI: 10.1039/B612741J
Luminescent logic function of a surfactant-encapsulated polyoxometalate complex
Hui Zhang, Xiankun Lin, Yi Yan, Lixin Wu
DOI: 10.1039/B606343H
Nano-patterning of solid substrates by adsorbed dendrimers
Ramon Pericet-Camara, Brian P. Cahill, Georg Papastavrou, Michal Borkovec
DOI: 10.1039/B612249C
Formation of cage-like hollow spherical silicavia a mesoporous structure by calcination of lysozyme–silica hybrid particles
Tatsuo Tsunoda, Akiko Kawai, Fujio Mizukami, Kengo Sakaguchi
DOI: 10.1039/B709534A
Measuring multiple carbon–nitrogen distances in natural abundant solids using R-RESPDOR NMR
DOI: 10.1039/B611447D
Metal–organic frameworks exhibiting strong anion–π interactions
Il'ya A. Gural'skiy, Pavlo V. Solntsev, Harald Krautscheid, Konstantin V. Domasevitch
DOI: 10.1039/B612660J
You might also like
How is Ethyl 4-chlorothieno[2,3-b]pyridine-5-carboxylate (CAS: 59713-58-5) typically synthesized?
Ethyl 4-chlorothieno[2,3-b]pyridine-5-carboxylate (CAS: 59713-58-5) can be synth...
What regulatory guidelines apply to 5-Methyl-1H-indole-3-carbaldehyde (CAS: 52562-50-2)?
5-Methyl-1H-indole-3-carbaldehyde (CAS: 52562-50-2) is subject to various regula...
What are the physical and chemical properties of (1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)boronic acid (CAS: 223418-73-3)?
(1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)boronic acid is a white...
How should waste containing Sulfocostunolide A (CAS: 1016983-51-9) be handled?
Waste containing Sulfocostunolide A (CAS: 1016983-51-9) should be handled with c...
What precautions should be taken when handling Murraxocin (CAS: 88478-44-8)?
When handling Murraxocin (CAS: 88478-44-8), ensure proper personal protective eq...
What are the physical and chemical properties of Formvar (CAS: 63148-64-1)?
Formvar (CAS: 63148-64-1) is an alkyd resin characterized by a high molecular we...
Is (S)-4-benzyl-2-((benzyloxy)methyl)morpholine (CAS: 205242-66-6) safe?
(S)-4-benzyl-2-((benzyloxy)methyl)morpholine is generally safe when handled with...
What industries use Methyl 1-(5-bromo-2-pyrimidinyl)cyclopropanecarboxylate (CAS: 1447607-69-3)?
Methyl 1-(5-bromo-2-pyrimidinyl)cyclopropanecarboxylate (CAS: 1447607-69-3) is p...
Is 2-Methyl-1-phenyl-1-propanamine hydrochloride (CAS: 24290-47-9) safe?
2-Methyl-1-phenyl-1-propanamine hydrochloride (CAS: 24290-47-9) is generally con...
How is 3-(4-Bromophenyl)-2-methylpropanoic acid (CAS: 66735-01-1) typically synthesized?
3-(4-Bromophenyl)-2-methylpropanoic acid is synthesized through a multi-step pro...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.
![9,9'-Spirobi[fluoren]-2-amine structure 9,9'-Spirobi[fluoren]-2-amine structure](https://static.chemtradehub.com/structs/118/118951-68-1-0d14.webp)

![9H-Fluoren-9-ylmethyl [(2S)-1-hydroxy-3-(1H-indol-3-yl)-2-propanyl]carbamate structure 9H-Fluoren-9-ylmethyl [(2S)-1-hydroxy-3-(1H-indol-3-yl)-2-propanyl]carbamate structure](https://static.chemtradehub.com/structs/153/153815-60-2-a67d.webp)

