Planned intervention: On Wednesday April 3rd 05:30 UTC Zenodo will be unavailable for up to 2-10 minutes to perform a storage cluster upgrade.
Published November 26, 2013 | Version v1
Journal article Open

Ionic Interactions of Divalent Transition Metal Sulfate in Aqueous PVOH Systems by Viscosity Method

Description

Viscosities of divalent transition metal sulfate (MnSO4, CuSO4 and ZnSO4) having concentration ranging from 2x10-2 to 10x10-2 mol dm-3 in aqueous polyvinyl alcohol (PVOH; 0.1 and 0.9 g dL-1) systems were measured at different temperatures from 298 to 318 K with interval of 5 K. The viscosity data were used to evaluate the ion-ion interaction and ion-solvent interactions in terms of A and B coefficients of Jones-Dole equation respectively. The positive value of B coefficient increased with the increase in temperature reveals that salts behave as structure maker in aqueous polyvinyl alcohol systems. With the help of viscosity data the thermodynamic parameters like energy of activation , free energy change of activation G and the entropy change of activation S were also evaluated as a function of salt concentration, solvent composition and temperature.

Read Complete Article at ijSciences: V2201310286

Files

V220131119.pdf

Files (711.2 kB)

Name Size Download all
md5:c45cbe6fef51aaf9910ef0da5f2e271f
711.2 kB Preview Download

Additional details