Viscosities and refractive indices of binary systems acetone+1-propanol, acetone+1,2-propanediol and acetone+1,3-propanediol

Abstract

Viscosities and refractive indices of three binary systems, acetone+1-propanol, acetone+1,2-propanediol and acetone+1,3-propanediol, were measured at eight temperatures (288.15, 293.15, 298.15, 303.15, 308.15, 313.15, 318.15 and 323.15 K) and at atmospheric pressure. From these data, viscosity deviations and deviations in refractive index were calculated and fitted to the Redlich-Kister equation. The viscosity modelling was done by two types of models: predictive UNIFAC-VISCO and ASOG VISCO and correlative Teja-Rice and McAlister equations. The refractive indices of binary mixtures were predicted by various mixing rules and compared with experimental data.

Viskoznosti i indeksi prelamanja tri binarna sistema aceton+1-propanol, aceton +1,2-propandiol i aceton+1,3-propandiol izmereni su na osam temperatura (288,15, 293,15, 298,15, 303,15, 308,15, 313,15, 318,15 i 323,15 K) i na atmosferskom pritisku. Iz izmerenih podataka izračunate su promene viskoznosti i promene indeksa prelamanja koje su korelisane jednačinom Redlich-Kister. Podaci za viskoznost su modelovani pomoću dva tipa modela: prediktivnih UNIFAC-VISCO i ASOG VISCO i korelativnih Teja-Rice i McAlister. Indeksi prelamanja dobijeni predviđanjem različitim pravilima mešanja poređeni su sa eksperimentalnim podacima.