Measurement and Correlation for the Solubility of Adipic Acid and Succinic Acid in Glutaric Acid + Cyclohexanone and Glutaric Acid + Acetic Acid Mixtures

Abstract

In this work, the solubilities of adipic acid and succinic acid in glutaric acid + cyclohexanone and glutaric acid + acetic acid mixtures were measured respectively by using the laser dynamic method under atmospheric pressure, in which the temperature ranged from 296.15 to 340.85 K and the mass fraction of glutaric acid in the binary solvent mixtures ranged from 0.00 to 0.30. The effects of glutaric acid on solubility of adipic acid and succinic acid have been discussed. It is found that the effects of glutaric acid on the solubility of adipic acid and succinic acid were negative and that with the increasing mass fraction of glutaric acid in the mixtures the solubilities of adipic acid and succinic acid would decrease. With the gradual increase of temperature, the measured solubility of adipic acid and succinic acid in glutaric acid + cyclohexanone and glutaric acid + acetic acid mixtures would increase at the constant proportion of solvent mixtures. Then the experimental data were wellcorrelated by the modified Apelblat equation and the modified nonrandom two-liquid (NRTL) activity coefficient models, in which the average relative deviation (ARD) were less than 2.50%, and the values of the solubility calculated showed good agreement with the experimental observation. The interaction parameters of AA and GA and SA and GA were determined first in this work.

Solubilities of Adipic Acid, Glutaric Acid, and Succinic Acid in Dimethyl Glutarate + Methanol Mixtures: Experimental Measurement and Thermodynamic Modeling

“…To ensure the reliability and accuracy of the experimental method and apparatus, the solubilities of AA (GA, SA) in pure cyclohexanone were measured and compared with the literature data, respectively. ,,,− The results are shown graphically in Table and Figures to . The results have good agreement with the literature data, which indicates that the experimental technique in this work is reliable and accurate.…”

“… a Standard uncertainties u are u ( T ) = 0.12 K, u r ( p ) = 0.05, and u r ( x ) = 0.10. x represents the experimental molar fraction of solubility in pure cyclohexanone. b RD = ( x c1 – x )/ x , where x and x c1 represent the molar fraction of solubility of experimental and average values in the literature (by the dynamic method) at the same temperature, respectively. ,,,,− c ARD is the averaged relative deviation. …”

“… b RD = ( x c1 – x )/ x , where x and x c1 represent the molar fraction of solubility of experimental and average values in the literature (by the dynamic method) at the same temperature, respectively. ,,,,− …”

“…Solubility x of GA in cyclohexanone: ■, solubility data in this work; ○ , solubility data in ref ; ◇ , solubility data in ref ; △, solubility data in ref ; ▽, solubility data in ref .…”

Measurement and Correlation of Solubilities of 3-Methyl-2-Nitrobenzoic Acid, 3-Methyl-4-Nitrobenzoic Acid, and 5-Methyl-2-Nitrobenzoic Acid in n-Butanol Isomer Solvents

“…The measurement of solubility was carried out by the method of laser dynamics, which is described in detail in the literature. − …”