Volumetric and Viscometric Properties of Methanol, Ethanol, Propan-2-ol, and 2-Methylpropan-2-ol with a Synthetic C₆₊ Mixture from 298.15 K to 318.15 K

Abstract

Densities and viscosities were measured for the systems of methanol, ethanol, propan-2-ol, and 2-methylpropan-2-ol separately with a synthetic C6+ mixture at temperatures from 298.15 K to 318.15 K and atmospheric pressure. The synthetic C6+ is a five-component hydrocarbon mixture. Densities were determined using a vibrating-tube densimeter. Viscosities were measured with an automatic Ubbelohde capillary viscometer. The estimated uncertainties are less than ±0.0004 g·cm-3 for density and ±0.8% for viscosity. By considering the six-component mixture as a pseudobinary system, excess volumes and viscosity deviations as a function of mole fraction average were derived, and the computed results were fitted to the Redlich−Kister equation.

Experimental Densities and Excess Volumes for Binary Mixtures Containing Propionic Acid, Acetone, and Water from 283.15 K to 323.15 K at Atmospheric Pressure

“…Table shows that our densities for these two pure substances agree with the literature values within an average value of ±0.24 kg·cm -3 .

1 Percentage deviations of experimental densities of water from the equation of state given by Wagner and Pruss: 13 ○, before the experimental measurements; ·, after the experimental measurements.

2 Percentage deviations of experimental densities of methanol from the equation of state given by de Reuck and Craven: 14 ·, this work; ▪, Nikam et al; ▴, Dizechi and Marshall; ▾, Ortega; ◆, Papanastasiou and Ziogas; ○, Garcia; ▵, Tu et al; □, Tu et al

3 Densities of acetone (1) + water (2) as a function of mole fraction at different temperatures. This work: ·, 293.15 K; ▪, 298.15 K; ▴, 303.15 K; ▾ , 323.15 K. Howard and McAllister: 3 ○, 293.15 K; □, 298.15 K; ▵, 323.15 K. Dizechi and Marschall: 1 dot in a box, 293.15 K; dot in a circle, 298.15 K; dot in an up triangle, 303.15 K; dot in a down triangle, 323.15 K. Noda et al: 2 plus in a diamond, 298.15 K. Lebed and Eddin: 4 plus in a circle, 298.15 K.

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“…Figure 2. Percentage deviations of experimental densities of methanol from the equation of state given by de Reuck and Craven: 14 b, this work; 9, Nikam et al; 35 2, Dizechi and Marshall; 1 1, Ortega; 36 [, Papanastasiou and Ziogas; 37 O, Garcia; 38 4, Tu et al; 39 0, Tu et al40 …”

Densities, Viscosities, and Refractive Indices for Binary and Ternary Mixtures of Diisopropyl Ether, Ethanol, and 2,2,4-Trimethylpentane

“…These oxygenated compounds are added to improve the octane rating and pollution-reducing capability of gasoline. This work has been carried out as a part of the project to investigate the thermophysical behavior of liquid mixtures of the oxygenated compounds included in a hydrocarbon mixture. − The main purpose of the present paper is to investigate the thermophysical properties for binary and ternary systems formed by two oxygenated compounds, such as ethanol and diisopropyl ether, and a hydrocarbon liquid, such as 2,2,4-trimethylpentane. The hydrocarbon liquid is the component that generally appears in gasoline.…”

Excess Molar Enthalpies for Ethanol + 2-Propanol + Methyl tert-Butyl Ether and 1-Propanol + 2-Propanol + Methyl tert-Butyl Ether at the Temperature of 298.15 K

“…Their densities were measured with a DMA 58 digital densimeter (Anton Paar) at 298.15 K, and the measured densities of the chemicals are compiled in Table 1 along with their recent published values. 5,[10][11][12][13] Apparatus and Procedure. Excess molar enthalpies were determined by a flow microcalorimeter at 298.15 K. Details of its experimental setup and operational procedures were described previously.…”

“…The purities of all the chemicals were estimated to be >99.7 mass %. Their densities were measured with a DMA 58 digital densimeter (Anton Paar) at 298.15 K, and the measured densities of the chemicals are compiled in Table along with their recent published values. ,− …”