Publication Type |
Journal Article |
Title |
Self-diffusivity measurements of dimethyl, diethyl, dipropyl, dibutyl, Bis(2-ethylhexyl) adipates from (293-339) K by a PGSE-NMR spin-echo technique |
Authors |
José do Rosário Ascenso Guilherme Rubio Joao C. F. Diogo Helena Avelino Fernando Caetano João Fareleira |
Groups |
MET |
Journal |
FLUID PHASE EQUILIBRIA |
Year |
2016 |
Month |
February |
Volume |
410 |
Number |
|
Pages |
37-41 |
Abstract |
The article reports self-diffusivity measurements of dimethyl (DMA), diethyl (DEA), dipropyl (DPA), dibutyl (DBA), and bis(2-ethylhexyl) (DEHA) adipates from (293-339) K by the PGSE-NMR technique. The expanded uncertainty of the results is estimated to better than +/-2\%. The results are interpreted in terms of the hydrodynamic and the van der Waals radii. The former are calculated a Stokes-Einstein-Sutherland-type equation, using recently published viscosity data. Furthermore, recently published density data for those adipates are used to calculate the hard sphere radii at contact in a cubic lattice, in order to compare the radii obtained from transport properties with those obtained from equilibrium data. In this temperature range the self-diffusivities of the liquid dialkyl adipates studied have an Arrhenius-like behavior. (C) 2015 Elsevier B.V. All rights reserved. |
DOI |
http://dx.doi.org/10.1016/j.fluid.2015.11.020 |
ISBN |
|
Publisher |
ELSEVIER SCIENCE BV |
Book Title |
|
ISSN |
0378-3812 |
EISSN |
1879-0224 |
Conference Name |
|
Bibtex ID |
ISI:000368566600005 |
Observations |
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