F. Philip, Devjyoti Nath, Kevin Sibilla
2020
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0
Influential Citations
4
Citations
Journal
The Journal of Chemical Thermodynamics
Abstract
Abstract In this study, the physiochemical and transport properties of {3-(Diethylamino) propylamine (DEAPA) + water} system were investigated. The densities and refractive indices of aqueous DEAPA solutions were measured at a range of temperatures from 293.15 K to 343.15 K, and at a pressure p = 95.1 (±0.8) kPa. The viscosities of the aqueous DEAPA were also measured from T = 298.15 K to 333.15 K. The excess properties of aqueous DEAPA solutions were calculated based on the experimental results. In addition, the activation energies and entropies for viscous flow were estimated from the viscosity data. The Redlich–Kister equation was used to correlate all excess properties. Based on volumetric data, DEAPA could not be described as structure breaker or structure maker, however, the nature of changes of viscosity against concentration (S-shaped) suggested the formation of stable complex.