ZHANG Rongrong, DOU Maobin, YUAN Enxian, et al. Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol[J]. CIESC Journal, 2015, (9): 3377-3382.
ZHANG Rongrong, DOU Maobin, YUAN Enxian, et al. Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol[J]. CIESC Journal, 2015, (9): 3377-3382.DOI: 10.11949/j.issn.0438-1157.20150860.
5-trimethylbenzene (TMB) and diisobutylcarbinol (DIBC) were determined at temperature ranging from 293.15 to 323.15 K and atmospheric pressure for the whole range of compositions by using viscometer. The excess molar viscosities of the mixed solvents were calculated and correlated by Redlich-Kister equation. The viscosities of the mixtures were correlated and predicted by Andrade equation
UNIFA-VISCO model
and Grunberg-Nissan model. The viscosities of the mixtures decreased with the increase of temperature and molar fraction of TMB. The excess viscosities showed negative deviations from ideal behavior
gave U-shaped curves as the molar fraction of TMB (x1) increased
and reached the minimum values at ca x1=0.3. The Grunberg-Nissan model was quite reasonable with the maximum and average relative errors between predicted and experimental data of 12.96% and 5.74%.