Izvorni znanstveni članak

https://doi.org/10.5562/cca2844

Viscosity Coefficients of KCl, NaCl, NaI, KNO₃, LiNO₃, NaBPh₄ and Bu₄NI in Water - Dimethyl Sulfoxide Binary Mixtures With a Low Organic Solvent Content

Adam Bald ; Department of Physical Chemistry, Faculty of Chemistry, University of Łódź, 90 – 236 Łódź, Pomorska 163/165, Poland
Zdzisław Kinart orcid.org/0000-0003-0263-7120 ; Department of Physical Chemistry, Faculty of Chemistry, University of Łódź, 90 – 236 Łódź, Pomorska 163/165, Poland
Renato Tomaš ; Department of Physical Chemistry, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, HR-21000 Split, Croatia

Sažetak

In this work the viscosities of KCl, NaCl, NaI, KNO₃, LiNO₃, NaBPh₄ and Bu₄NI solutions (from ~0.01 mol dm–3 to ~0.05 mol dm–3) in water (1) + dimethyl sulfoxide (DMSO) (2) binary mixtures with mole fractions of DMSO, x₂ = 0.01, 0.02, 0.05, 0.075, 0.10 and 0.15, were determined at 298. 15 K. The viscosities measured were used to evaluate the viscosity B-coefficients by means of Jones-Dole's equation. The results obtained allowed us to determine the values of B_± coefficients for individual ions using the assumption about the equality B(Bu₄N+) = B(BPh₄–). All the results have been discussed in terms of ion-solvent interactions.

Ključne riječi

viscosity of solutions; water + dimethyl sulfoxide (DMSO) mixtures; Jones-Dole equation; viscosity B-coefficients

Hrčak ID:

169469

URI

https://hrcak.srce.hr/169469

Datum izdavanja:

28.9.2016.

Posjeta: 3.025 *