Measurement and Correlation of Viscosities, Densities, and Water Activities for the System Poly(propylene glycol) + MgSO4 + H2O at 25°C |
| |
| Authors: | Mohammed Taghi Zafarani-Moattar Alireza Salabat |
| |
| Institution: | (1) Physical Chemistry Department, University of Tabriz, Tabriz, Iran |
| |
| Abstract: | Viscosities, densities, and water activities for binary and ternary systems of poly(propylene glycol) 425 + H2O and poly(propylene glycol) 425 + MgSO4 + H2O have been measured at 25°C. From density and viscosity measurements, excess volumes and excess viscosities of the binary poly(propylene glycol) 425 + H2O, over the entire composition range, were obtained and correlated by means of a Redlich–Kister type equation. Viscosity, density. and water activity data for ternary system of poly(propylene glycol) 425 + MgSO4 + H2O were correlated by using a semiempirical equation. |
| |
| Keywords: | Poly(propylene glycol) magnesium sulfate viscosity density water activity aqueous solutions |
| 本文献已被 SpringerLink 等数据库收录！ |
|
