Showing papers in "Journal of Chemical & Engineering Data in 1982"
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TL;DR: In this article, the authors reported the kinematic viscosities and densities of eight binary and four ternary liquid mixtures of polar components for various temperatures, and correlated them with McAllister's equation of viscosity.
Abstract: Kinematic viscosities and densities of eight binary and four ternary liquid mixtures of polar components are reported for various temperatures. Experimental viscosities were correlated with McAllister's equation of viscosity and with a modified form of the McAllister equation.
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TL;DR: The osmotic coefficients of aqueous Eu(NO/sub 3/)/sub 3, Y(NO,sub 3), YCl, and YCl were measured at 25 /sup 0/C from dilute solution to supersaturated concentrations with the isoplestic method.
Abstract: The osmotic coefficients of aqueous Eu(NO/sub 3/)/sub 3/, Y(NO/sub 3/)/sub 3/, and YCl/sub 3/ have been measured at 25 /sup 0/C from dilute solution to supersaturated concentrations with the isoplestic method. Least-squares equations were fitted to these osmotic coefficients, which were then used to calculate water activities and mean molal activity coefficients. Pitzer's equations were also fitted to the lower-concentration data. These results are compared to published activity data for rare-earth chlorides, perchlorates, and nitrates. A total of 40 rare-earth salts have now been studied, and their activities are discussed in terms of cation hydration and anion-cation interactions. Density data are also reported for Y(NO/sub 3/)/sub 3/ solutions.
TL;DR: In this paper, the isobaric heat capacities of binary mixtures of water with methanol, ethanol, and 1-propanol, obtained from flow microcalorimetric measurements at 288.15 and 308.15 K, are reported.
Abstract: Excess isobaric heat capacities of binary mixtures of water with methanol, ethanol, and 1-propanol, obtained from flow microcalorimetric measurements at 288.15 and 308.15 K, are reported.
TL;DR: Bubble point pressures have been measured for the carbon dloxldebenzene system at 313.2, 353.2 and 393.2 K as mentioned in this paper.
Abstract: Bubble-point pressures have been measured for the carbon dloxldebenzene system at 313.2, 353.2, and 393.2 K and pressures fram 0.1 to 13.3 MPa (15 to 1930 psla). Vaporphase compodtlons were also measured at 313.2 K. The results differ substantially from prevlow results by Wan and Dodge and by Ohgakl and Katayama. The present data are represented well by the Soave equation of state when two optimum Interaction parameters, C12 = 0.066 and D12 = 0.043, are u W root-mean-square errors In calculated bubble-pdnl pressures are 0.06 MPa (9 pda).
TL;DR: In this article, the shear viscosity coefficient of saturated and compressed liquid propane has been measured with a torsionally oscillating quartz crystal viscometer at temperatures between 90 and 300 K and at pressures up to 30 MPa (4350 psla).
Abstract: The shear viscosity coefficient of saturated and compressed liquid propane has been measured with a torsionally oscillating quartz crystal viscometer at temperatures between 90 and 300 K and at pressures up to 30 MPa (4350 psla). The estimated precision and accuracy of the measurements are about 1% and 2%, respectively. The measurements have been compared with an equation previously optimized to available data and proposed for calculating the viscosity of compressed gaseous and liquid propane at temperatures down to 140 K. Differences between the equation and the measurements reported here are within our experimental error at temperatures above 140 K. Differences between our measurements and the equation extrapolated to temperatures below 140 K increase with decreasing temperature (and increasing density) to about 30% at 90 K.
TL;DR: In this article, the osmotic coefficients of aqueous CsCl, SrCl/sub 2/, and mixtures of NaCl and csCl were measured at 25/sup 0/C by the isoplestic method, and data for the NaCl-CsCl solutions were accurately represented by the two-parameter form of Pitzer's equations.
Abstract: The osmotic coefficients of aqueous CsCl, SrCl/sub 2/, and mixtures of NaCl and CsCl have been measured at 25/sup 0/C by the isoplestic method. The solubilities of CsCl and SrCl/sub 2/-6H/sub 2/O have also been measured at this temperature. These experimental data are compared with other available activity and solubility data and are in good agreement in most cases. Least-squares equations were used to represent the single-salt osmotic coefficients, and these equations were used to calculate water activities and mean molal activity coefficients. Data for the NaCl-CsCl solutions are accurately represented by the two-parameter form of Pitzer's equations. 2 figures, 6 tables.
TL;DR: In this paper, Ouensanga, A., Dode, M. A., and Dode et al. this paper presented a set of JANAF Thermochemical tables.
Abstract: (4) Ouensanga, A.; Dode, M. J. Nucl. Mater. 1078, 59, 49. (5) Prescott, C. H.; Hlncke, W. 8. J. Am. Chem. Soc. 1026, 48, 2534. (6) Kutsev, V. S.; Ormont, 8. F.; Epelbaum, V. A. Dokl. Akad. hkuk. SSSR 1055, 704, 567. (7) Hollahan, J. R.; Gregory. N. W. J. Phys. Chem. 1064, 68, 2346. (8) Baker, F. 8.; Storms, E. K.; Holley, C. E., Jr. J. Chem. Eng. Data 1080, 1 4 , 244. (1) Stull, D. R., et al. "JANAF Thermochemical Tables"; Dow Chemical Co.: Midland, MI, 1965. (2) Alcock, C. 8.; Jacob, K. T.; Zador, S. At. Energy Rev. 1078, special issue No. 6 7. Received for review January 28, 1881. Revised manuscript received Novem (3) Storms, E. K.; Griffin, J. High. Temp. Sci. 1073, 5 . 291. ber 4, 1981. Accepted December 9, 1981.
TL;DR: In this article, a static analytical method was employed to measure high-pressure vapor-liquid equilibria up to the critical point on methane-aromatic hydrocarbon systems, including new data for the methane-m-xylene and methane-mesitylene systems.
Abstract: Methane's solubility in other hydrocarbons is a very important property in optimizing tertiary oil recovery processes that use miscible gas drive. A static analytical method was employed to measure high-pressure vapor-liquid equilibria up to the critical point on methane-aromatic hydrocarbon systems. The results include new data for the methane-m-xylene and methane-mesitylene systems. A comparison with data from several other sources furnishes a basis for choosing the most reliable experimental method and data origin.
TL;DR: In this article, saturated vapor pressures and enthalples of propylene carbonate and of ethylene carbonates were measured at varlous temperatures, and the densities of the water and ethanol systems of the two systems were determined at 25 OC.
Abstract: The saturated vapor pressures and the enthalples of vaporlratlon of propylene carbonate and of ethylene carbonate were measured at varlous temperatures. The densltles of the propylene carbonate -k water and propylene carbonate + ethanol systems were measured at 25 OC. The sobblllty phase dlagrm of the propylene carbonate + water system and the Ilquld-llquld phase dlagram of the ethanol 4propylene carbonate + water system were determlned at 25 O C .
TL;DR: In this paper, a gas-expansion method has been used to measure the density of liquid ethylene at 19 temperatures between 110 and 280 K and at pressures up to 1300 bar.
Abstract: A gas-expansion method has been used to measure the density of liquid ethylene at 19 temperatures between 110 and 280 K and at pressures up to 1300 bar. The results have been fitted to an equation of state that has been used to calculate the following properties of the compressed liquid: density, isothermal compressibility, thermal expansivity, thermal pressure coefficient, configurational internal energy, and entropy relative to the entropy of the ideal gas at the same density and temperature. The following properties of the saturated liquid have been calculated: enthalpy of vaporization, configurational internal energy, isothermal compressibility, thermal expansivity, and thermal pressure coefficient. The densities and mechanical coefficients were also estimated for the liquid along the melting line. The density, internal energy, and entropy results have been interpreted in the light of a perturbation theory using several intermolecular potential models for ethylene.
TL;DR: In this article, the phase behavior of three ternary systems (methane-propane-n-octane, methane-nbutane n-decane, carbon dioxide-n octane) was studied in their regions of L/sub 1/-L/sub 2/-V immiscibility.
Abstract: The phase behavior of three ternary systems (methane-propane-n-octane, methane-n-butane-n-octane, methane-carbon dioxide-n-octane) was studied in their regions of L/sub 1/-L/sub 2/-V immiscibility. Liquid-phase composition and molar volume data for both liquid phases are presented as a function of temperature and pressure in the three-phase region. The boundaries of the three-phase regions, locl of K points (L/sub 1/-L/sub 2/ = V), LCST points (L/sub 1/ = L/sub 2/-V), and Q points (S-L/sub 1/-L/sub 2/-V) are detailed. A detailed study of the immiscibility behavior of the binary system carbon dioxide-n-octane is also presented.
TL;DR: In this article, measurements of excess volume and ultrasonic speed were carried out for mixtures of 2,5,8-trloxanonane ((CH,0CH2CH2),0) wlth n-heptane at 298.15 K over the entire mole fraction range including the region of high dilution of the ether.
Abstract: Measurements of excess volume and ultrasonic speed were carried out for mixtures of 2,5,8-trloxanonane ((CH,0CH2CH2),0) wlth n-heptane at 298.15 K over the entire mole fraction range Including the region of high dilution of the ether. From these results, Isentropic comprerdbllltles, excess isentropic comprerdbilltles, partial molar excess volumes, and partial molar excess Isentropic compresslblllties were calculated. A qualitative discusdon of the results Is presented.
TL;DR: In this article, isothermal vapor-liquid equilibrium data have been measured for the binary systems benzene-phenol (80 /sup 0/C), n-octane-phenols (110 /sup 1/C) and n-decane-pharmol (120 /sup 2/C).
Abstract: Isothermal vapor-liquid equilibrium data have been measured for the binary systems benzene-phenol (80 /sup 0/C), n-octane-phenol (110 /sup 0/C), and n-decane-phenol (120 /sup 0/C). Thermodynamic consistency was checked by two methods, and the parameters in different expressions for the excess Gibbs energy have been fitted. Furthermore, the region of mutual solubility (LLE, SLE) of the binary system n-decane-phenol has been investigated.