Interaction in Nonelectrolyte Solutions.  Solubility of Napthalene in Some Mixed Solvents Containing Benzene.

Heric, E. L.; Posey, C. D.

doi:10.1021/je60020a012

Cited by 27 publications

(19 citation statements)

References 11 publications

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“…In the former system, the solubility is essentially constant within experimental error. The average departure of experimental solubilities from the smoothed values is comparable to that found in the benzene-solvent systems (2).…”

Section: Discussionsupporting

confidence: 67%

“…For comparison, the square of the difference between the solubility parameters of the various solvent paris, equal to Wñ by solubility parameter theory (3), has been listed in Column 11 of Table III. The solubility parameters are from Column 9 of Table III (2). The validity of Equation 15 is also shown in Figures 3 and 4 in terms of the extent of linearity of the interchange energy of the pseudo-binary solute-mixed solvent system, defined by Equation 16.…”

Section: Methodsmentioning

confidence: 99%

“…The interaction effects wpre investigated by determination of the solubility of naphthalene in the mixed solvent systems. A description of the reagents, equipment, and experimental procedure has been given (2). RESULTS Columns 4 and 5 of Table I list the experimental naphthalene solubilities corresponding to the initial solvent compositions given in Columns 2 and 3.…”

Section: Methodsmentioning

confidence: 99%

“…The validity of Equation 15 is also shown in Figures 3 and 4 in terms of the extent of linearity of the interchange energy of the pseudo-binary solute-mixed solvent system, defined by Equation 16. In discussing the benzene-solvent systems (2), it was erroneously concluded that the use of was less valid than that of Wá via Equation 15. Rather, the two are related, and are equally effective.…”

Section: Methodsmentioning

confidence: 99%

“…THIS WORK is the second of a series concerning interactions in the ternary systems formed by naphthalene and benzene, toluene, ethylbenzene, carbon tetrachloride, cyclohexane, n-hexane and n-hexadecane. The previous work dealt with the six systems having benzene as a common solvent component (2), while the present work includes nine toluene and ethylbenzene systems.…”

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confidence: 99%

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Interaction in Nonelectrolyte Solutions II. Solubility of Naphthalene at 25° in Some Mixed Solvents Containing Toluene, Ethylbenzene.

Heric¹,

Posey²

1964

J. Chem. Eng. Data

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The solubility of naphthalene has been determined at 25" in the nine binory mixed solvents formed by combining toluene or ethylbenzene with each of the others in the series: ethylbenzene, toluene, carbon tetrachloride, cyclohexane, n-hexane and n-hexadecane. The determinations were made refractometrically under isothermal conditions. The average uncertainty in the solubilities is less than 0.001 in mole fraction naphthalene. Interaction in the ternan systems is related to that of the component pairs, using the approaches of Guggenheim and Hildebrand. The average errors in correlation by either approach am comparable, 0.002 to 0.003 in mole fraction naphthalene, for those systems of known solvent-solvent interaction effects.Solvent-solvent intemctions obtained by present ternary solubility studies are tompored to litemtun values based upon studies of the binary systems. The error introduced by approximating the interaction of a component pair in terms of the interaction of each member of the pair with a third component is considered, The approximation results in errors of the same magnitude as those which would be expected using the true pair interaction term.

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Section: Discussionsupporting

confidence: 67%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Interaction in Nonelectrolyte Solutions II. Solubility of Naphthalene at 25° in Some Mixed Solvents Containing Toluene, Ethylbenzene.

Heric¹,

Posey²

1964

J. Chem. Eng. Data

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The correlation of vapor‐liquid equilibria of methane in paraffinic, naphthenic, and aromatic solvents at low temperatures and high pressures

1968

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Several different approaches, such as the convergence pressure concept, equations of state, the application of the principle of corresponding states, etc., have been tried for the correlation of vapor-liquid equilibria of hydrocarbons for many years. The NGAA Data Book ( 3 0 ) is an example of the application of the convergence pressure concept which was originated by Organick and Brown ( 3 2 ) and later developed by Hadden ( 1 4 ) . The well-known eightparameter Benedict-Webb-Rubin (BWR) equation of state ( 2 ) and the simple two-parameter Redlich-Kwong (R-K) equation of state ( 3 7 ) have been used to some extegt. Leland and co-workers ( 2 2 to 25) have developed a method to predict vapor-liquid equilibria based on the corresponding states principle. A method of correlation with the solubility parameter concept arid certain aspects of the corresponding states theor was given by Chao and tion is restricted to certain systems and limited temperature and pressure conditions. The purpose of this paper is to present a method to predict the phase behavior in binary systems containing methane and a relatively heavy component which can be paraffinic, naphthenic, or aromatic, such as n-heptane, methylcyclohexane, or toluene. Temperatures of interest in this correlation range from 330" to 500"R. and pressures from 100 to several thousand Ib./sq.in.abs. The highest pressure data used were at 3,822 Ib./sq.in.abs. and 492"R. for the methane-nnonane system. Extension of the general approach to multicomponent systems is underway.The method of correlating vapor-liquid equilibria data in this work is based on the separation of the deviations of the K value from ideality into deviations occurring in the vapor phase and liquid phase separately; these deviations are then correlated with thermodynamically consistent expressions. In this method, the vapor phase nonideality is calculated from the modified R-K equation of state (44, 4 5 ) ; the liquid nonideality is calculated with reference to the pure liquid components and the deviations from ideal solution laws. DESCRIPTION OF THE CORRELATIONSeader ( (Yi/+i)

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Solubility in Binary Solvent Systems III: Predictive Expressions Based on Molecular Surface Areas

Acree

Rytting

1983

Journal of Pharmaceutical Sciences

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The nearly ideal binary solvent model, which has led to successful predictive equations for the partial molar Gibbs free energy of the solute in binary solvent mixtures, was extended to include molecular surface areas as weighting factors. Two additional expressions were derived and compared to previously developed equations (based on molar volumes as weighting factors) for their ability to predict anthracene and naphthalene solubilities in mixed solvents from measurements in the pure solvents. The most successful equation in terms of goodness of fit involved a surface fraction average of the excess Gibbs free energy relative to Raoult's law and predicted experimental solubilities in 25 systems with an average deviation of 1.7% and a maximum deviation of 7.5%. Two expressions approximating weighting factors with molar volumes provided accurate predictions in many of the systems studied but failed in their ability to predict anthracene solubilities in solvent mixtures containing benzene.

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Interaction in Nonelectrolyte Solutions. Solubility of Napthalene in Some Mixed Solvents Containing Benzene.

Cited by 27 publications

References 11 publications

Interaction in Nonelectrolyte Solutions II. Solubility of Naphthalene at 25° in Some Mixed Solvents Containing Toluene, Ethylbenzene.

Interaction in Nonelectrolyte Solutions II. Solubility of Naphthalene at 25° in Some Mixed Solvents Containing Toluene, Ethylbenzene.

The correlation of vapor‐liquid equilibria of methane in paraffinic, naphthenic, and aromatic solvents at low temperatures and high pressures

Solubility in Binary Solvent Systems III: Predictive Expressions Based on Molecular Surface Areas

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