Deviations of binary organic eutectic melt systems

Sharma, B.L.; Kant, Rajni; Sharma, Ritu; Tandon, S.

doi:10.1016/s0254-0584(03)00199-8

Cited by 33 publications

(24 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Inversely to what has been found often in the literature [43][44][45][46], where mathematical extremes had been found for those properties exactly at the eutectic composition, in this study it is not possible to observe a global maximum or minimum of those properties at the eutectic point. Nevertheless, the excess values at these particular mole fractions are in general close to the recorded minima or maxima, which can be most probably attributed to a consequence of the minimum temperature value at the eutectic.…”

Section: Excess Thermodynamic Functionssupporting

confidence: 58%

Solid + liquid equilibria and molecular structure studies of binary mixtures for nitrate ester’s stabilizers: Measurement and modeling

et al. 2018

View full text Add to dashboard Cite

A B S T R A C TSolid-liquid equilibria (SLE) data for two binary organic mixtures of N-(2-methoxyethyl)-p-nitroaniline + Nethyl-4-nitroaniline (S1) and N-(2-ethanol)-p-nitroaniline + N-ethyl-4-nitroaniline (S2) have been measured using differential scanning calorimeter to build the corresponding solid-liquid phase diagrams. The quality of the SLE data has been checked by consistency tests, presenting good quality factors for both systems. Simple eutectic behavior has been observed for these systems with the presence of a solid-solid transition for S2. The SLE data have been correlated by means of Wilson, NRTL, and UNIQUAC equations. The used models calculate the equilibrium temperatures very satisfactorily. The best modeling results were obtained using the Wilson equation with a root mean square deviation between experimental and calculated values for S1 and S2 of 1.15 and 1.99, respectively. The Wilson, NRTL, and UNIQUAC equations have also been used to compute excess thermodynamic functions viz. excess Gibbs energy, enthalpy, and entropy. The obtained results demonstrated a moderate positive deviation to ideality for S1, and a strong positive deviation for S2, unveiling the nature of the interactions between the compounds forming each mixture. In addition, microstructural studies have been carried out by FTIR, XRD and optical microscopy. Weak molecular interactions have been shown for the eutectic compositions. Jackson's roughness parameter was calculated and found to be greater than 2, suggesting the faceted morphology with irregular structures.

show abstract

Section: Excess Thermodynamic Functionssupporting

confidence: 58%

Solid + liquid equilibria and molecular structure studies of binary mixtures for nitrate ester’s stabilizers: Measurement and modeling

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The negative values of H E points towards negative deviations from ideality. These results confirm that the two eutectics and the off-eutectic are non-ideal mixtures in the molten state [21]. The variation of linear velocities of crystallization (v) of pure components and their eutectic mixtures with undercoolings (DT) are shown in Fig.…”

Section: Resultssupporting

confidence: 76%

Phase equillibria and solidification behaviour in the vanillin–p-anisidine system

Singh

Das

Gupta

et al. 2008

Journal of Crystal Growth

View full text Add to dashboard Cite

“…Published studies 15,39,42,[54][55][56][57][58] have also included phase diagrams for binary naphthalene mixtures containing a variety of different organic compounds, including saturated hydrocarbons (eicosane, pentacosane, octacosane, trans-decahydronaphthalene, and cis-decahydronaphthalene), polycyclic aromatic hydrocarbons (biphenyl and phenanthrene) and chlorinated benzenes (1,2-dichlorobenzene, 1,3-dichlorobenzene, and 1,4-dichlorobenzene). Phase diagrams and discussions given in the papers did not suggest any inconsistencies in the individual datasets.…”

Section: Critical Evaluation Of Experimental Solubility Datamentioning

confidence: 99%

IUPAC-NIST Solubility Data Series. 98. Solubility of Polycyclic Aromatic Hydrocarbons in Pure and Organic Solvent Mixtures—Revised and Updated. Part 3. Neat Organic Solvents

Acree

2013

Journal of Physical and Chemical Reference Data

View full text Add to dashboard Cite

This work updates Vols. 54, 58, and 59 in the IUPAC Solubility Data Series and presents solubility data for polycyclic aromatic hydrocarbon solutes dissolved in neat organic solvents. Published solubility data for acenaphthene, anthracene, biphenyl, carbazole, dibenzofuran, dibenzothiophene, fluoranthene, fluorene, naphthalene, phenanthrene, phenothiazine, pyrene, thianthrene, and xanthene that appeared in the primary literature from 1995 to the end of 2011 are compiled and critically evaluated. Experimental solubility data for more than 550 different solute-organic solvent systems are included. Solubility data published prior to 1995 were contained in three earlier volumes (Vols. 54, 58, and 59) and are not repeated in this volume.

show abstract

Deviations of binary organic eutectic melt systems

Cited by 33 publications

References 6 publications

Solid + liquid equilibria and molecular structure studies of binary mixtures for nitrate ester’s stabilizers: Measurement and modeling

Solid + liquid equilibria and molecular structure studies of binary mixtures for nitrate ester’s stabilizers: Measurement and modeling

Phase equillibria and solidification behaviour in the vanillin–p-anisidine system

IUPAC-NIST Solubility Data Series. 98. Solubility of Polycyclic Aromatic Hydrocarbons in Pure and Organic Solvent Mixtures—Revised and Updated. Part 3. Neat Organic Solvents

Contact Info

Product

Resources

About