Viscosity of liquid bromoalkanes at ambient pressure from 253.15 to 423.15 K: New experimental data and their free volume theory-based interpretation

This work reports new experimental data for the viscosity of 1-bromopenthane (within the temperature range (253.15–298.15) K), 1-bromohexane ((263.15–293.15) K), 1-bromoheptane ((263.15–298.15) K), 1-bromooctane ((253.15–293.15) K), 1-bromononane ((253.15–413.15) K), 1-bromodecane ((253.15–423.15) K...

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Bibliographic Details
Published in:Fluid phase equilibria 2020-11, Vol.522, p.112735, Article 112735
Main Authors: Ryshkova, Olga S., Belenkov, Roman N., Postnikov, Eugene B.
Format: Article
Language:English
Subjects:
1-Bromoalkanes
Free volume
van der Waals volume
Viscosity
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Summary:This work reports new experimental data for the viscosity of 1-bromopenthane (within the temperature range (253.15–298.15) K), 1-bromohexane ((263.15–293.15) K), 1-bromoheptane ((263.15–298.15) K), 1-bromooctane ((253.15–293.15) K), 1-bromononane ((253.15–413.15) K), 1-bromodecane ((253.15–423.15) K), 1-bromoundecane ((283.15–423.15) K), 1-bromododecane ((273.15–293.15) K), and 1-bromohexadecane ((298.15–423.15) K). Considering them in combination with previously known data for these substances, it is shown that the viscosity of this series of 1-bromoalkanes accurately satisfies the Bingham-Coombs model based on the free volume approach. The quantitative connection of the excluded volume with the van der Waals volume and the packing fraction is revealed. •New data in unexplored before temperature regions are provided.•Applicability of Bingham-Coombs model is confirmed.•Physical interpretation of free volume parameters is proposed.
ISSN:0378-3812
1879-0224
DOI:10.1016/j.fluid.2020.112735