Viscosity coefficients of KCl, NaCl, NaI, KNO₃, LiNO₃, NaBPh₄ and Bu₄NI in water-rich binary mixtures containing propan-2-ol at 298.15 K

ABSTRACT

Viscosities of KCl, NaCl, NaI, KNO₃, LiNO₃, NaBPh₄ and Bu₄NI solutions (from ~0.01 M to ~0.05 M) in water (1) + propan-2-ol) (2) binary mixtures with mole fractions of propan-2-ol, x₂ = 0.01, 0.02, 0.05, 0.075, 0.10 and 0.15, were determined at 298. 15 K. The relative viscosity data have been analysed and interpreted in terms of the Jones–Dole equation, η_r = A∙c^1/2 + B∙c. The obtained results allowed to determine the values of B_± coefficients for individual ions using the assumption about the equality . All the results presented in this article have been discussed in terms of ion–solvent interactions.

KEYWORDS:

• Viscosity of solutions
• water + propan-2-ol mixtures
• Jones–Dole equation
• viscosity B-coefficients

Disclosure statement

No potential conflict of interest was reported by the authors.

Supplemental material

The supplemental data for this article can be accessed here

Additional information

Funding

The present work was financed by the University of Łódź [grant number B1511100000050.01].