Density and Viscosity Measurements of Binary Alkanol Mixtures from (293.15 to 333.15) K at Atmospheric Pressure (original) (raw)
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Viscosities and densities of eight binary 1-alkanol systems at 308.15 and 313.15 K
Fluid Phase Equilibria, 1998
The viscosities and densities of eight 1-alkanol binary systems: 1-propanol-1-butanol, 1-propanol-1-pentanol, 1-butanol-1-pentanol, 1-butanol-1-nonanol, 1-butanol-1-decanol, 1-pentanol-1-octanol, 1-heptanol-1-octanol, and 1-decanol-1-undecanol, were measured over the entire composition range at 308.15 and 313.15 K and at atmospheric pressure. The viscosity data were correlated by the McAllister equation resulting in an Ž. average absolute error AAD 0.2% when the three-body model is used and 0.14% when the four-body model is employed. The viscosity data were also used to test the predictive capability of the Generalized Corresponding Ž. State Principle GCSP method. The resulting AAD was 0.96%. q 1998 Elsevier Science B.V.
Chinese Journal of Chemistry, 2007
Excess molar volumes VmEand kinematic viscosities ν have been measured as a function of composition for binary mixtures of propylene glycol monomethyl ether (1-methoxy-2-propanol), MeOCH2CH(OH)Me, propylene glycol monoethyl ether (1-ethoxy-2-propanol), EtOCH2CH(OH)Me, propylene glycol monopropyl ether (1-propoxy-2-propanol), PrOCH2CH(OH)Me, propylene glycol monobutyl ether (1-butoxy-2-propanol), BuOCH2CH(OH)Me, and propylene glycol tert-butyl ether (1-tert-butoxy-2-propanol), t-BuOCH2CH(OH)Me with 1-butanol, and 2-butanol, at 298.15 K and atmospheric pressure. The excess molar volumes are negative across the entire range ofcomposition for all the systems with 1-butanol, and positive for the systems 2-butanol+1-methoxy-2-propanol, and +1-propoxy-2-propanol, negative for the systems 2-butanol+1-butoxy-2-propanol, and change sign for the systems 2-butanol+1-ethoxy-2-propanol, and +1-tert-butoxy-2-propanol. From the experimental data, the deviation in dynamic viscosity η from Δxiηi has been calculated. Both excess molar volumes and viscosity deviations have been correlated using a Redlich-Kister type polynomial equation by the method of least-squares for the estimation of the binary coefficients and the standard errors.
Journal of Chemical & Engineering Data, 2009
The densities and kinematic viscosities of 10 binary regular solutions were measured over the entire composition range at 308.15 and 313.15 K. The excess volumes of mixing, absolute viscosities and viscosity deviations were calculated from the experimental data. The viscosity deviations were found to be negative for eight systems. For the two other systems, heptane + octane and toluene + ethylbenzene, the viscosity deviations are scattered around zero. The data reported herein were used to examine the predictive capabilities of some viscosity-prediction models; namely, the predictive version of the McAllister model, the GC-UNIMOD model, the generalized corresponding states principle method, and the Allan and Teja correlation. The results of testing these models revealed that the McAllister model predicts the data much better than the other models and has the lowest absolute average deviation of 1.7%.
Journal of Chemical & Engineering Data, 2012
This paper presents densities and viscosities of binary mixtures of butan-1-ol (or 2-methylpropan-1-ol) with propane-1,2-diol, and butane-1,2-diol from 298.15 to 333.15 K at 0.1 MPa over the entire concentration range. A vibrating tube densimeter provides the densities while a glass capillary viscometer provides the efflux time which is related with the kinematic viscosity. Experimental densities and viscosities of the pure components agree with data reported in the literature within an average absolute percentage deviation of 0.03% and 1.16%, respectively. The excess molar volumes and viscosity deviation calculated from experimental data present negative deviations from ideality in the entire temperature range. The Redlich−Kister equation is used to represent the composition behavior of excess molar volumes and the viscosity deviations. The Nava-Rios equation correlates our kinematic viscosity data within an overall average absolute percentage deviation of 1.085% while the McAllister equation correlates the kinematic viscosity within 1.541%.
Theoretical and Experimental Methods for Study of Binary mixtures viscosity at T= 303.15
2018
Molecular interactions in binary mixtures composed of a xylene and selected 1-butanol 1-pentanol, 1-hexanol, 1-heptanol and 1-octanol was investigated by measuring the viscosity at T= 303.15 K. From experimental data, viscosity deviation was calculated. Values of viscosity deviations for all binary mixtures are negative and increase with increase of alcohols chain length. Obtained data were interpreted based on the type and magnitude of the physico-chemical interactions in the binary liquid systems. free volume theory was applied to correlate the viscosities of binary mixtures and correlated values by this model were good enough and obtained data were within the uncertainty region.Keywords: Viscosity; xylene; 1-Alkanol; free volume theory
Canadian Journal of Chemistry, 2000
Excess molar volumes (VEm) and dynamic viscosities (η) for five (alkoxyethanol + propylamine) mixtures have been measured as a function of composition at 298.15 K and atmospheric pressure. The alkoxyethanols were 2-methoxyethanol, 2-(2-methoxyethoxy)ethanol, 2-(2-ethoxyethoxy)ethanol, 2-(2-butoxyethoxy)ethanol, and 2-{2-(2-methoxyethoxy)ethoxy}ethanol. The excess molar volumes VEm are all negative over the whole composition range. The viscosity data have been correlated by the methods of Kendall and Monroe, Grunberg and Nissan, Tamura and Kurata, Hind, Katti and Chaudry, and with McAllister correlations. From the experimental data, deviations in the viscosity (Δη) have been calculated. The results are discussed in terms of the interaction between components.Key words: excess volume, viscosity, binary mixtures.
Viscosities of binary liquid mixtures of some n-alkoxypropanols with n-alkanols at 298.15 K
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 2007
The viscosities (η) in binary liquid mixtures of (n-alkoxypropanols + methanol, ethanol, or 1-propanol) have been measured as a function of composition using an Ubbelohde viscometer at 298.15 K and atmospheric pressure over the full range of composition. The n-alkoxypropanols are propylene glycol monomethyl ether (l-methoxy-2-propanol), CH 3 OCH 2 CH 2 CH 2 OH, propylene glycol monoethyl ether (l-ethoxy-2-propanol), C 2 H 5 OCH 2 CH 2 CH 2 OH, propylene glycol monopropyl ether (l-propoxy-2-propanol), C 3 H 7 OCH 2 CH 2 CH 2 OH, propylene glycol monobutyl ether (1-butoxy-2-propanol), C 4 H 9 OCH 2 CH 2 CH 2 OH propylene glycol tert-butyl ether (1-tert-butoxy-2-propanol), CH 3 CHOHCH 3 OC(C 4 H 9 ) 3 . The η values for each of the mixture studied are positive over the whole mole fraction range. For all the cases, except propylene glycol tert-butyl ether, η increases in a positive direction with increase in chain length of n-alkoxypropanols. The values of Δη, which refers to the deviat...
Journal of Chemical and Engineering Data, 2000
We report herein the density, viscosity, and excess properties of poly(ethylene glycol) 400 (PEG 400) þ dimethyl sulfoxide (DMSO) and 600 (PEG 600) þ water binary mixtures at temperatures from (298.15 to 323.15) K and (298.15 to 308.15) K, respectively, covering the whole composition range at atmospheric pressure. The excess molar volumes (V m E ) and viscosity deviation (Δη) were calculated using the measured density and viscosity of the binary systems. They were correlated as a function of temperature and composition and fitted by the RedlichÀKister polynomial equation. The results of pure PEG 400 and 600 were also obtained and were compared with the data reported in previous literature.
Journal of Chemical & Engineering Data, 2013
We present densities and dynamic viscosities of binary mixtures of n-octane with ethanol, 1-propanol, 1-butanol, and 1-pentanol. Measurements are performed at atmospheric pressure from (293.15 to 323.15) K using a vibrating-tube densimeter and three Cannon−Fenske viscosimeters. We have calculated the excess molar volumes and the viscosity deviations from the experimental measurements. Results have been correlated to Redlich−Kister type equations. from (303.15 to 318.15) K. Feitosa et al. 24 measured them from (273.15 to 298.15) K with increments of 2.5 K. Density measurements for n-octane + 1-propanol at 298.15 K have been reported by Kaur et al., 39 Iglesias et al., 40 Orge et al., 23 and Mato et al. 41 Gupta et al. 42 measured the excess molar volume of this mixture at 303.15 K. Measurements from (293.15 to 308.15) K were performed by Jimeńez et al. 25,43 Densities for the system n-octane + 1-butanol have been measured by Nath 44 at 293.15 K, by Gupta et al. 42 at 303 K, by Nath and Pandey 45 at (288.15 and 298.15) K, by De Cominges et al. 46 from (288.15 to 308.15) K, and by Dubey et al. 26 from (298.15 to 308.15) K. Also, different authors have measured the density of this mixture at 298.15 K. 27,28,39,40,47−49 For the mixture of n-octane + 1-pentanol, several authors 39,40,45,50,51 have measured the liquid density at 298.15 K. Gupta et al. 42 report the excess molar volume for the same mixture at 303.15 K. Experimental measurements of viscosities of n-octane + ethanol have been reported by Orge et al. 23 at 298.15 K. However, Feitosa et al. 24 reported viscosity measurements at