Experimental determination and modeling of excess molar volumes, viscosities and refractive indices of the binary systems (pyridine+1-propanol, +1,2-propanediol, +1,3-propanediol, and +glycerol). New UNIFAC-VISCO parameters determination

Viscosity of Choline Chloride-Based Deep Eutectic Solvents: Experiments and Modeling

“…The only set of measurements, with a reported water content (< 0.02 wt%), where we observe larger deviations, is that of Mjalli and Ahmed 69 . Their values are 13-21% lower than our values in the temperature range 293-333 K. 54 (solid, red, up triangle), Sun et al 55 (solid, red, down triangle), Carvalho et al 56 (solid, red diamond), Quijada et al 57 (solid, red, right-pointing triangle); (ii) 1,3-propanediol by Živković and co-workers 49,58,59 (solid, blue pentagon), Moosavi et al 51 (solid, blue square); (iii) 1,4-butanediol by Nain et al 68 (solid, green circle), Moosavi et al 51 (solid, green square), Saleh et al 70…”

“…of (a) glycols and (b) DES. Literature data was reported for: (i) ethylene glycol by Zhao et al 54 (solid, red, up triangle), Sun et al 55 (solid, red, down triangle), Carvalho et al 56 (solid, red diamond), and Quijada et al 57 (solid, red, left-pointing triangle); (ii) 1,3propanediol by Živković and co-workers 49,58,59 (solid, blue pentagon), and Moosavi et al 51 (solid, blue square); (iii) 1,4-butanediol by Grineva and Zhuravlev 60 (green bar), Moosavi et al 51 (solid, green square), Czechowski et al 52 (solid, green hexagon), and Yang et al 50 53 (open, red diamond), Shahbaz and coworkers 64,65 (open, red, right-pointing triangle), Abbott et al 66 (open, red pentagon), Ozturk et al 20 (open, red star), and Gajardo-Parra et al 13 (red bubbled circle); (v) DES-A2 by Ozturk et al 20 (open, blue star), and Abbott et al 66 Viscosity data obtained in this work were compared with literature for ethylene glycol, 1,3propanediol, and 1,4-butanediol, as shown in Figure 4(a), and with DES-A, DES-B, and DES-D in Figure 4(b). The agreement with glycol literature data, see Figure 4(a), is on average within 4%, with only 4 data points showing larger deviations of up to -5.6%.…”

Achieving Macroscale Liquid Superlubricity Using Lubricant Mixtures of Glycerol and Diols

“…Diols are miscible with glycerol since they could easily form intermolecular H-bonds with glycerol. The dissolved diol molecules could embed in the selfassociated three-dimensional structure of glycerol molecules, as depicted in Figure 7(a), working as structure breaker to hinder the strong glycerol-glycerol interaction [39]. Due to the weakened glycerolglycerol interaction, the diol/glycerol mixtures exhibit lower viscosity.…”

Viscosidades de sistemas de interesse para a desterpenação de óleos essenciais: modelagem de dados para a obtenção de novos parâmetros do modelo UNIFAC-VISCO utilizando algoritmo genético

“…As viscosidades experimentais, disponíveis em Florido et al (2013) ,4 -1023,4 - ,5 170,4 2047,4 - ,9 CH 1911,4 - ,6 1855,4 - ,8 2047,4 - ,9 -1019,4 - ,0 1782,4 - ,9 0 -137,2 785,7 1155 CHO 1191 Fase Terpênica 0,2849 0,70 (0,09 -1,74) 0,37 (0,04 -0,97) 0,3085 0,34 (0,04 -0,75) 0,51 (0,004 -0,88) 0,3357 1,93 (0,11 -3,77) 0,84 (0,004 -2,37) 0,4215 1,08 (0,20 -3,28) Fase Terpênica 0,2378 1,57 (0,08 -2,73) 0,80 (0,39 -1,01) 0,2825 0,90 (0,12 -1,74) 1,00 (0,03 -2,14) 0,3540 1,79 (0,11 -4,28) 0,36 (0,04 -0,84) 0,4025 2,51 (1,50 -3,41) 1,50 (0,15 -5,16 Kijevcanin et al(2013), Bajic et al(2013a), Fang (2012) e Zivkovic et al(2010 obtiveram desvios no estudo de diversos sistemas binários variando entre 1 -3%; 0,89 -6,71%; 0,10 -5,64% e 9,9 a 20%, respectivamente.…”

“…A Equação (13) Bajic et al, 2013a;Fang, 2012;Gonzalez et al, 2004a;Gonzalez et al, 2006a;Gonzalez et al, 2006b;Gonzalez et al, 2007a;Kijevcanin et al, 2013;Rodriguez et al, 2003;Rodriguez et al, 2004;Zivkovic et al, 2010). Os parâmetros mais recentes, presentes na literatura, são resultado deste projeto de mestrado e estão disponíveis em Florido et al (2013).…”