Showing papers in "Journal of Chemical & Engineering Data in 1990"
TL;DR: Vapor pressure for nonpolar and moderately polar organochlorine, pyrethroid, and organophosphate insecticides were determined by capillary gas chromatography (GC).
Abstract: Vapor pressures for nonpolar and moderately polar organochlorine, pyrethroid, and organophosphate insecticides, phthalate esters, and organophosphate flame retardants were determined by capillary gas chromatography (GC). This method provides vapor pressures within a factor of 2 of average literature values for nonpolar compounds, similar to reported interlaboratory precisions of vapor pressure determinations
275 citations
TL;DR: Les mesures des donnees d'equilibre de phases sont effectuees a 313.4 and 333.4 K a l'aide d'un nouvel appareil statique as discussed by the authors.
Abstract: Les mesures des donnees d'equilibre de phases sont effectuees a 313.4 et 333.4 K a l'aide d'un nouvel appareil statique. L'appareillage est presente
257 citations
TL;DR: In this article, the vapor pressures of aqueous solutions of lithium halides were measured at different concentrations and temperatures from 303.15 to 343.15 K with use of a differential static method.
Abstract: The vapor pressures of aqueous solutions of lithium halides were measured at different concentrations and temperatures from 303.15 to 343.15 K with use of a differential static method. Osmotic and activity coefficients were calculated and compared
180 citations
TL;DR: In this paper, the McAllister model has been used to fit experimental values of kinematic viscosities of binary liquid systems, including linear, branched, cyclic and aromatic liquid systems.
Abstract: Kinematic viscosities and densities of 68 linear, branched, cyclic and aromatic hydrocarbons binary liquid systems have been determined at 298.15 K over the entire composition range. The McAllister model has been used to fit experimental values of kinematic viscosities
148 citations
TL;DR: In this paper, the apparent molar volumes and viscosity B coefficients of α-, substituted α-, and α,ω-amino acids were determined in water and aqueous ammonium chloride solutions at 298.15 K with a vibrating-tube digital density meter and a modified Cannon-Ubbelhode suspended-level viscometer.
Abstract: Apparent molar volumes and viscosity B coefficients of some α-, substituted α-, and α,ω-amino acids have been determined in water and aqueous ammonium chloride solutions at 298.15 K with a vibrating-tube digital density meter and a modified Cannon-Ubbelhode suspended-level viscometer
120 citations
TL;DR: In this paper, the ternary system CO{sub 2} + n-butane + ndecane at 160°degrees F was measured on a mixture of constant overall molar composition with phase densities and interfacial tensions.
Abstract: This paper presents experimental vapor-liquid equilibrium phase compositions, phase densities, and interfacial tensions for the ternary system CO{sub 2} + n-butane + n-decane at 160{degrees} F. Measurements were made on a mixture of constant overall molar composition of 90.2% CO{sub 2}, 5.9% n-C{sub 4}, 3.9% n-C{sub 10} at pressures from 1310 psia to a near-critical dew point state at 1675 psia. Additional data were obtained at a constant pressure of 1600 psia. The measured phase compositions are in agreement with the data of Metcalfe and Yarborough. The phase densities and interfacial tensions represent data not previously available in the literature.
120 citations
TL;DR: The pK a values were determined potentiometrically for the conjugate acids of 2-(2-aminoethoxy)ethanol (DGA), 2-(methylamino)ethylmethyl-1-propanol (AMP), N-methyldiethanolamine (MDEA), 2-dimethylaminogen(DMMEA), DEMEA, 2-(diethylamino), and 2-diisopropylamino(DIPMEA) at 293, 303, 318, and 333 K RE
Abstract: The pK a values were determined potentiometrically for the conjugate acids of 2-(2-aminoethoxy)ethanol (DGA), 2-(methylamino)ethanol (MMEA), 2-(tert-butylamino)ethanol (TBAE), 2-amino-2-methyl-1-propanol (AMP), N-methyldiethanolamine (MDEA), 2-(dimethylamino)ethanol (DMMEA), 2-(diethylamino)ethanol (DEMEA), and 2-(diisopropylamino)ethanol (DIPMEA) at 293, 303, 318, and 333 K
113 citations
TL;DR: In this article, a computer program is used to predict solubilities in NaCl solutions of anhydrite up to 250°C and gypsum up to 110°C.
Abstract: Anhydrite and gypsum solubilities in water and aqueous NaCl are reviewed. The coefficients required to calculate CP°, ΔH°, ΔG°, ΔS°, and K sp for the solubility equilibrium as a function of temperature are given. The transition temperature for the equilibrium between gypsum and anhydrite calculated by using these coefficients is 59.9°C. Activity coefficients are calculated with a modified Pitzer formalism. A computer program is used to predict solubilities in NaCl solutions of anhydrite up to 250°C and gypsum up to 110°C
97 citations
TL;DR: In this paper, room-temperature and azeotropic composition data for solutions together with recently published hightemperature P-T-X data and roomtemperature values for the equilibrium vapor pressure of sulfur-bearing species over concentrated sulfuric acid-water solutions are evaluated critically for self-consistency.
Abstract: Published room-temperature and azeotropic composition data for solutions together with recently published high-temperature P-T-X data and room-temperature values for the equilibrium vapor pressure of sulfur-bearing species over concentrated sulfuric acid-water solutions are evaluated critically for self-consistency. The adjusted data are used to calculate activity coefficients at 0 o C and at the normal azeotropic boiling temperature and to generate expressions for the partial molar beat capacities in H 2 SO 4 -H 2 O solutions
77 citations
TL;DR: In this article, the saturated liquid densities, vapor pressures, and compressed liquid PVT properties of HCFC 123 and HFC 134a were measured by a magnetic densimeter.
Abstract: This paper reports measured saturated liquid densities, vapor pressures, and compressed liquid PVT properties of these substances. Saturated liquid densities of HCFC 123 and HFC 134a were measured by a magnetic densimeter
72 citations
TL;DR: In this article, the use of retention measurements in supercritical fluid chromatography to obtain solubilities in a supercritical liquid is discussed, where retention measurements can be used to generate relatively rapidly a large body of solubility data at a particular temperature from as smaller number of measurements, obtained by more conventional methods, at either the same temperature or at least two similar temperatures.
Abstract: The use of retention measurements in supercritical fluid chromatography to obtain solubilities in a supercritical fluid is discussed. In certain circumstances, retention measurements can be used to generate relatively rapidly a large body of solubility data at a particular temperature from as smaller number of measurements, obtained by more conventional methods, at either the same temperature or at least two similar temperatures
TL;DR: In this paper, a new boiler design is used that exhibits better temperature stability, allowing more precise and accurate data to be measured, and the results are compared to available literature data.
Abstract: Infinite dilution activity coefficients were measured for 54 systems with an improved differential boiling point apparatus. Following the suggestions of Scott, a radical new boiler design is used that exhibits better temperature stability, allowing more precise and accurate data to be measured. The results are compared to available literature data. The temperature dependence of γ ∞ was also studied and found to be reasonable. Estimates of the partial molar excess enthalpy at infinite dilution are reported
TL;DR: In this paper, the equilibres liquide vapeur sont mesures for les systemes binaires CO 2 /n-decane and CO 2/tetraline.
Abstract: Les equilibres liquide vapeur sont mesures pour les systemes binaires CO 2 /n-decane et CO 2 /tetraline et pour le systeme ternaire CO 2 /n-decane/tetraline a 71.1 et 104.4 o C pour des pressions pres de la region critique. La solubilite du CO 2 dans le n-decane et la tetraline est observee
TL;DR: In this article, the vapor pressure and gas phase PVT surface of 1,1-dichloro-2,2-trifluoroethane (refrigerant 123) in the temperature range 338-453 K at densities up to 0.67 mol/L
Abstract: We present new data for the vapor pressure and gas-phase PVT surface of 1,1-dichloro-2,2,2-trifluoroethane (refrigerant 123) in the temperature range 338-453 K at densities up to 0.67 mol/L
TL;DR: In this article, experimental measurements of density and viscosity of three binary systems were performed over the complete concentration ranges, for temperatures between 273.15 and 303.15 K. Experimental densities were compared with those predicted by the Hankinson-Brobst-Thomson method.
Abstract: Experimental measurements of density and viscosity of three binary systems, viz., p-xylene/m-xylene, p-xylene/o-xylene, and m-xylene/o-xylene, were performed over the complete concentration ranges, for temperatures between 273.15 and 303.15 K. Experimental densities were compared with those predicted by the Hankinson-Brobst-Thomson method, showing average deviations of about 0.3%. The viscosity data were correlated by the McAllister equations, producing excellent representations of both binary and ternary data
TL;DR: In this article, the authors made measurements with the cell Pt|H 2 (g, 101.325 kPa), KCl (m 1 ), borax(m 2 ) |AgCI;Ag over the temperature range 273.15-318.15 K and at five ionic strengths from 0.1 to 1.5 mol•kg -1
Abstract: Electromotive force measurements have been made with the cell Pt|H 2 (g, 101.325 kPa)|KCl (m 1 ), borax(m 2 ) |AgCI;Ag over the temperature range 273.15-318.15 K and at five ionic strengths from 0.1 to 1.5 mol•kg -1
TL;DR: A transient hot-wire method was used to measure the thermal conductivities of the first six members of the poly (ethylene glycol) series at 1 atm between 295 and 480 k.
Abstract: A transient hot-wire method was used to measure the thermal conductivities of the first six members of the poly (ethylene glycol) series at 1 atm between 295 and 480 k and of the binary systems ethylene glycol + tri (ethylene glycol), di (ethylene glycol) + tri (ethylene glycol), and di (ethylene glycol) + hexa (ethylene glycol) over the whole composition range. A linear mixing rule was used to extend the correlation to mixtures of poly (ethylene glycols)
TL;DR: In this paper, the dielectric constants and volumes of mixing of 2-pyrrolidone + water mixtures were measured at 25, 35, 45, and 55 o C over the entire composition range.
Abstract: The dielectric constants and volumes of mixing of 2-pyrrolidone + water mixtures were measured at 25, 35, 45, and 55 o C over the entire composition range. The excess dielectric constants and the polarizations were calculated. The observed deviations from ideality, decreasing with increasing temperature, are interpreted in terms of hydrogen-bonding interactions
TL;DR: This paper measured bubble points, dew points, critical points, and critical points in the system ammonia+water for several mixtures of constant overall composition by direct observation, and concluded that at lower temperatures and pressures the four sources of reference data present a unique and consistent picture of vapor-liquid equilibria in a system ammonia + water.
Abstract: Bubble points, dew points, and critical points were measured in the system ammonia+water for several mixtures of constant overall composition by direct observation. Results have been compared with those of Muller et al., Rizvi and Heidemann, and Gillespie et al. It is concluded that at lower temperatures and pressures the four sources of reference data present a unique and consistent picture of vapor-liquid equilibria in the system ammonia+water. At temperatures above 473 K, significant deviations exist
TL;DR: In this paper, a set of methanol/water/salt solutions at atmospheric pressure with a modified Othmer still and a modified Boublik-Benson still were analyzed.
Abstract: Vapor-liquid equilibrium measurements have been performed on a set of alcohol/water/salt solutions at atmospheric pressure with a modified Othmer still and a modified Boublik-Benson still. The systems studied are methanol and water with NaCl, NaBr, KCl, and KBr; 1-propanol and water with NaCl, KBr, and NaBr; and 2-propanol with water and NaBr. The measurements are for salt concentrations ranging from infinite dilution to saturation for each water/alcohol solvent mixture
TL;DR: Excess volume, excess viscosity, excess free energy of activation of flow, and contact interaction parameter have been computed for binary liquid mixtures of nitrobenzene with cyclohexane or N,N-dimethylformamide from density and viscoity measurements in the temperature interval of 298.15-313.15 K as mentioned in this paper.
Abstract: Excess volume, excess viscosity, excess free energy of activation of flow, and contact interaction parameter have been computed for binary liquid mixtures of nitrobenzene with cyclohexane or N,N-dimethylformamide from density and viscosity measurements in the temperature interval of 298.15-313.15 K. The calculated quantities are discussed in terms of the nature of the molecular interactions between the components. Attempts were also made to test the validity of the viscosity models of Heric, Auslaender, and McAllister in predicting the binary viscosity data
TL;DR: In this article, the authors measured the densities and refractive indices of normal acids from acetic acid to octanoic acid in the temperature range 20-50 o C.
Abstract: Densities and refractive indices of normal acids from acetic acid to octanoic acid were measured in the temperature range 20-50 o C. Densities and refractive indices of oleic acid were also measured at the same temperature range. The Eykman equation was used to check the accuracy of experimental densities and refractive indices. The refractive indices obtained by using the Lorentz-Lorenz equation agree with experimental ones within an average deviation of about ±0.0005
TL;DR: In this article, the ternary η-X-T data were fitted in a Redlich-Kister-type equation along with a Ternary contribution term.
Abstract: Mixture viscosities and densities of the ternary mixtures of toluene, bromobenzene, 1-hexanol, and 1-octanol were measured at 30, 40, 50, and 60 o C. The nonidealities reflected in mixture viscosities are expressed and discussed in terms of excess viscosities, which were negative in most of the cases. The ternary η-X-T data were fitted in a Redlich-Kister-type equation along with a ternary contribution term
TL;DR: In this article, the isobaric heat capacity of liquid HFC-134a, which is a prospective alternative to CFC-12, has been measured by using a flow calorimeter.
Abstract: The isobaric heat capacity, C p , of liquid HFC-134a, which is a prospective alternative to CFC-12, has been measured by using a flow calorimeter. The C p of saturated liquid, C p ', has been determined on the basis of the data measured in the compressed liquid phase, and a correlation of C p ' has also been developed
TL;DR: In this paper, the authors reported the kinematic viscosities of eight binary, five ternary, and one quaternary liquid mixtures for a wide range of temperatures and composition.
Abstract: Kinematic viscosities of eight binary, five ternary, and one quaternary liquid mixtures are reported for a wide range of temperatures and composition. The data were correlated with the McAllister equation and also with two modified versions of the McAllister equation
TL;DR: In this paper, the density-composition data for eight binary mixtures, viz., toluene-n-decane, tetradecane, polycyclic tetradesane, and ethylbenzene n-hexadecANE, have been determined at 293.15, 298.15 and 313.15 K over the entire composition range.
Abstract: Density-composition data for eight binary mixtures, viz., toluene-n-octane, toluene-n-decane, toluene-n-dodecane, toluene-n-tetradecane, toluene-n-hexadecane, ethylbenzene-n-octane, ethylbenzene-n-tetradecane, and ethylbenzene-n-hexadecane have been determined at 293.15, 298.15, 308.15, and 313.15 K over the entire composition range. The results have been correlated by polynomial expressions. The experimental data were also used to calculate excess volumes of mixing
TL;DR: Les diffusivites de l'oxygene dans des liquides organiques pures et melanges sont determinees dans une cellule polarographique a diffusion as mentioned in this paper.
Abstract: Les diffusivites de l'oxygene dans des liquides organiques pures et melanges sont determinees dans une cellule polarographique a diffusion. Une relation empirique avec la viscosite liquide est suggeree
TL;DR: In this paper, the experimental VLE data of both systems were verified and found to be thermodynamically consistent and the azeotropic coordinates (mole fraction of the ester and temperature) were 0.091 and 350.97 K, for methyl butanoate+ethanol, and 0.409 and 366.77 K, respectively.
Abstract: Binary T-p-c-y vapor-liquid equilibria (VLE) at 101.32 kPa are reported for methyl butanoate+ethanol or 1-propanol. The experimental VLE data of both systems were verified and found to be thermodynamically consistent. The azeotropic coordinates (mole fraction of the ester and temperature) are 0.091 and 350.97 K, for methyl butanoate+ethanol, and 0.409 and 366.77 K, for methyl butanoate+1-propanol. The data were then compared with those obtained by using the UNIFAC and ASOG models
TL;DR: In this paper, the Taylor dispersion technique was used to measure the dispersion of propene at 298.2-348.2 K and up to 6891 kPa for the solvents 1-butanol, chlorobenzene, ethylene glycol, and n-octane.
Abstract: Diffusivities of propene measured at 298.2-348.2 K and up to 6891 kPa are reported for the solvents 1-butanol, chlorobenzene, ethylene glycol, and n-octane. Measurements were made by means of the Taylor dispersion technique. The densities of the solvents at the experimental temperatures and up to 6891 kPa are also reported
TL;DR: Mesure des constantes dielectriques statiques a l'aide d'une relation fonction de la composition and de la pression pour des melanges aqueux d'alcools as mentioned in this paper.
Abstract: Mesure des constantes dielectriques statiques a l'aide d'une relation fonction de la composition et de la pression pour des melanges aqueux d'alcools