EFFECTS OF PRESSURE, TEMPERATURE, AND CONCENTRATION ON THE VISCOSITY OF AQUEOUS AMMONIUM BROMIDE SOLUTION

Citation
Y. Yoshimura et al., EFFECTS OF PRESSURE, TEMPERATURE, AND CONCENTRATION ON THE VISCOSITY OF AQUEOUS AMMONIUM BROMIDE SOLUTION, Zeitschrift fur Naturforschung. A, A journal of physical sciences, 50(2-3), 1995, pp. 316-322
Citations number
19
Categorie Soggetti
Chemistry Physical",Physics
ISSN journal
09320784
Volume
50
Issue
2-3
Year of publication
1995
Pages
316 - 322
Database
ISI
SICI code
0932-0784(1995)50:2-3<316:EOPTAC>2.0.ZU;2-2
Abstract
The viscosity of aqueous ammonium bromide solutions is measured at 0.1 -1.0 mol kg(-1), 278.2-323.2 K, and 0.1-375 MPa, using a high-pressure rolling-ball viscometer. The activation energy (E(v)) for viscous flo w and Jones-Dole's B coefficient are estimated. E(v) against pressure yields a concave curve with a minimum and B yields a convex one with a maximum. These phenomena are attributed to pressure, temperature, and concentration effects on the water-structure.