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Effect of a two-phase boundary in D2O/triethylamine solution : An 1H NMR study. / Gabuda, Svyatoslav P.; Kozlova, Svetlana G.; Kompankov, Nikolay B. et al.
In: Fluid Phase Equilibria, Vol. 443, 15.07.2017, p. 9-13.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effect of a two-phase boundary in D2O/triethylamine solution
T2 - An 1H NMR study
AU - Gabuda, Svyatoslav P.
AU - Kozlova, Svetlana G.
AU - Kompankov, Nikolay B.
AU - Redkina, Ksenia S.
PY - 2017/7/15
Y1 - 2017/7/15
N2 - 1H NMR spectra were recorded in triethylamine (D2O/triethylamine) binary aqueous solution which had a lower critical point of the liquid–liquid phase transition. The spectra in the phase with predominant content of triethylamine molecules were found to get broaden inhomogeneously above the critical temperature. It is hypothesized that D2O/triethylamine system at 10−3 ≤ (T–Tc)/Tc ≤ 10−1 falls into the area of long-wave fluctuations of the order parameter. The revealed broadening can be attributed to the intermolecular interaction between triethylamine and water in the vicinity of the two-phase boundary.
AB - 1H NMR spectra were recorded in triethylamine (D2O/triethylamine) binary aqueous solution which had a lower critical point of the liquid–liquid phase transition. The spectra in the phase with predominant content of triethylamine molecules were found to get broaden inhomogeneously above the critical temperature. It is hypothesized that D2O/triethylamine system at 10−3 ≤ (T–Tc)/Tc ≤ 10−1 falls into the area of long-wave fluctuations of the order parameter. The revealed broadening can be attributed to the intermolecular interaction between triethylamine and water in the vicinity of the two-phase boundary.
KW - H NMR
KW - Binary aqueous solution
KW - Phase transition
KW - Triethylamine
KW - Water
KW - CRITICAL CONSOLUTE POINT
KW - RELAXATION
KW - SYSTEM TRIETHYLAMINE-WATER
KW - VISCOSITY
KW - NMR
KW - H-1 NMR
KW - BINARY-MIXTURE
KW - DYNAMICS
KW - DIFFUSION
KW - CRITICAL SOLUTION POINT
KW - HEAT-CAPACITY
UR - http://www.scopus.com/inward/record.url?scp=85017117438&partnerID=8YFLogxK
U2 - 10.1016/j.fluid.2017.03.026
DO - 10.1016/j.fluid.2017.03.026
M3 - Article
AN - SCOPUS:85017117438
VL - 443
SP - 9
EP - 13
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
SN - 0378-3812
ER -
ID: 9979231