Solubility of 3-methyl-4-nitrobenzoic acid in binary solvent mixtures of {(1,4-dioxane, N -methyl-2-pyrrolidone, N , N -dimethylformamide) + methanol} from T = (283.15 to 318.15) K: Experimental determination and thermodynamic modelling

Study on the Solubilities of Mononitro-Substituted Products of Nitration of m-Toluic Acid in Several Solvents at Temperatures between 297.65 and 351.75 K

“…It should be noted that in previously reported literatures, the solubilities of 3-M-4-NBA have been measured by Wu in methanol, ethanol, and n -propanol at temperatures between 283.15 and 318.15 K. , Acree also have studied the solubility data of 3-M-4-NBA in methanol and ethanol at 298.2 K . In addition, Li and Hart also have studied 2-methyl-3-nitrobenzoic acid in several solvents.…”

“…It should be noted that in previously reported literatures, the solubilities of 3-M-4-NBA have been measured by Wu in methanol, ethanol, and n-propanol at temperatures between 283.15 and 318.15 K. 15, 16 Acree also have studied the solubility data of 3-M-4-NBA in methanol and ethanol at 298.2 K. 17 In addition, Li 18 and Hart 19 also have studied 2-methyl-3-nitrobenzoic acid in several solvents. However, there are no available data on the solubilities of 3-M-2-NBA and 5-M-2-NBA in water, methanol, ethanol, n-propanol, formic acid, acetic acid, and propanoic acid although several reports on the solubilities of 3-M-4-NBA have been disclosed.…”

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

“…3-Methyl-2-nitrobenzoic acid (3-M-2-NBA), 3-methyl-4-nitrobenzoic acid (3-M-4-NBA), and 5-methyl-2-nitrobenzoic acid (5-M-2-NBA) are important intermediates of chemical organic compounds, which are widely used in pesticide, medicine, and other fields. − These three acids are isomers of aromatic carboxylic acids. Although these aromatic carboxylic acid isomers have the same functional group composition, literature studies have reported their different thermodynamic properties. , Of course, there are many reports on these three acids about the solid–liquid equilibrium (SLE). − He et al determined the solubility of 3-M-2-NBA, 3-M-4-NBA, and 5-M-2-NBA in methanol, ethanol, n -propanol, formic acid, acetic acid, propanoic acid, and water; Wu measured the solubility of 3-M-4-NBA in water, methanol, ethanol, n -propanol, n -butanol, and other solvents . Unfortunately, no one has systematically studied the changes of thermodynamic properties of these three isomeric aromatic acids in isomeric solvents, so the solubility of 3-M-2-NBA, 3-M-4-NBA, and 5-M-2-NBA in n -butanol, iso-butanol, tert-butanol, and sec-butanol would be studied at atmospheric pressure.…”