Density and Viscosity of Binary Mixtures of Diethyl Carbonate with Alcohols at (293.15 to 363.15) K and Predictive Results by UNIFAC-VISCO Group Contribution Method

Abstract

Densities and viscosities of the binary mixtures of diethyl carbonate (DEC) with 1-propanol, 1-butanol, and 1-pentanol have been determined at (293.15 to 363.15) K and at atmospheric pressure. Excess molar volumes and viscosity deviations for the binary mixtures were fitted to the Redlich−Kister equation. Dependences of excess molar volumes and viscosity deviations with carbon chain length were discussed. The UNIFAC-VISCO method, based on contribution groups, has been used to calculate the dynamic viscosities of the binary mixtures. The percentage deviations between experimental and predicted values are given.

Experimental densities and derived thermodynamic properties of liquid propan-1-ol at temperatures from 298 to 423K and at pressures up to 40MPa

“…Good agreement within 0.1% is found between the present data and the values reported in the references [7,23,26,30,31,33,34,45,61,66,71,73], while the data by Kabir et al [56] and Yang et al [64] show large deviations from 0.4% to 0.6%. The data by Kabir et al [56] are systematically higher, while the data by Yang et al [64] systematically lower. A detailed compar- [33]; ( ), [27]; (×), [65]; ( ), [41]; (♦), [37]; ( ), [24]; ( ), [61]; ( ), [25]; ( ), [142]; (--), calculated with Eq.…”

“…Excellent agreement within 0.04-0.07% was found between the present results and the data reported in the references [20,22,38,40,41,48,49,52,57,72,74]. Good agreement within 0.1% is found between the present data and the values reported in the references [7,23,26,30,31,33,34,45,61,66,71,73], while the data by Kabir et al [56] and Yang et al [64] show large deviations from 0.4% to 0.6%. The data by Kabir et al [56] are systematically higher, while the data by Yang et al [64] systematically lower.…”

“…It can be seen that the majority of deviations are lower than ±0.1%, the average absolute deviation (AAD) is about 0.06% (see also Table 3). Most of the data by Zúñiga-Moreno and Galicia-Luna [53] show systematic negative deviations, although the deviations are very close [49]; ( ), [56]; ( ), [71]; (×), [58]; (⊗), [64]; ( ), [74]; (♦), [47]; (+), [65]; ( ), [73]; ( ), [61]; ( ), [70]; ( ), [62]; ( ), [33]; ( ), [72]; (♂), [76]; (♀), [32]; ( ), [75]; ( ), [35]; ( ), [36]; ( ), [21]; (--), calculated with correlation by Khasanshin [92]; (----), calculated with correlation by Marczak et al [47].…”

Densities, Excess Molar Volumes, Ultrasonic Speeds, and Isentropic Compressibilities of Hexan-1-ol with 1,2-Dichloroethane, 1,2-Dibromoethane, and 1,1,2,2-Tetrachloroethene at (293.15 and 298.15) K

“…The increase in the excess molar volume, V E , the negative deviation in sound speed, u D , and the positive excess isentropic compressibility, κ E S,m , support the main factor of gradual disruption of the self-associated hexan-1-ol molecules on the addition of the halohydrocarbons and the weak physical intermolecular interactions [9,32,45,46] and the relatively weaker interactions of the type Cl· · ·H-O and Br· · ·H-O and π -bond interactions of the type O-H· · ·π between unlike molecules. For the pure components, the values of V, b, and r show the same relations: hexan-1-ol > 1,1,2,2-tetrachloroethene > 1,2-dibromoethane > 1,2-dichloroethane.…”

Kinematic Viscosities for Ether + Alkane Mixtures: Experimental Results and UNIFAC-VISCO Parameters

“…The Wu model [15] combines the Eyring equation and the UNIFAC group contribution method [16]; the GC-UNIMOD [17] uses both a group contribution viscosity equation and an activity coefficient equation; the Asfour method [18,19] calculates the McAllister equation parameters using the group contribution concept; and the UNIFAC-VISCO method [20,21], which is also based on the Eyring equation, uses kinematic viscosity data to obtain group interaction parameters. From these methods, the UNIFAC-VISCO is one of the most frequently used [22][23][24][25][26]. Recently, in order to improve and extend the model proposed by Chevalier, some authors have recalculated and presented some interaction parameters among different groups [27][28][29][30][31].…”