The solubility of m-aminobenzoic acid (m-ABA) Form I in 12 pure solvents (methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, isobutyl alcohol, water, acetonitrile, acetone, methyl acetate, isopropyl acetate, 1,4-dioxane) was measured at temperatures from T = 283.15 to 323.15 K by a gravimetric method under atmospheric pressure. The mole fraction solubility values of m-ABA in these 12 solvents increase with increasing temperature in the following order: 1,4-dioxane > acetone > methanol > ethanol > methyl acetate > 2-propanol > 1-propanol > 1-butanol > isobutyl alcohol > isopropyl acetate > acetonitrile > water. The solubility of m-ABA is influenced by multiple factors, such as the hydrogen bond between the solute and solvent, solvent polarity, and the solvent–solvent interaction. The relationship between solubility and temperature was mathematically correlated by the modified Apelblat equation, van’t Hoff equation, λh equation, and the Wilson model. The calculated ARD% values indicate that the correlation results are in good agreement with the experimental data. The most suitable model is the modified Apelblat equation.

中文翻译：

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间氨基苯甲酸在 283.15 至 323.15 K 的 12 种纯溶剂中的溶解度测量和热力学相关性

间氨基苯甲酸（m-ABA）I型在12种纯溶剂（甲醇、乙醇、1-丙醇、2-丙醇、1-丁醇、异丁醇、水、乙腈、丙酮、乙酸甲酯、乙酸异丙酯、 1,4-二恶烷）是在温度从T= 283.15 至 323.15 K，在大气压下通过重量法测定。m-ABA 在这 12 种溶剂中的摩尔分数溶解度值随温度升高按以下顺序增加：1,4-二恶烷 > 丙酮 > 甲醇 > 乙醇 > 乙酸甲酯 > 2-丙醇 > 1-丙醇 > 1-丁醇 > 异丁基酒精 > 乙酸异丙酯 > 乙腈 > 水。m-ABA 的溶解度受多种因素影响，如溶质和溶剂之间的氢键、溶剂极性和溶剂-溶剂相互作用。溶解度和温度之间的关系通过修正的 Apelblat 方程、van't Hoff 方程、λ h在数学上相关方程和威尔逊模型。计算出的 ARD% 值表明相关结果与实验数据非常吻合。最合适的模型是修改后的 Apelblat 方程。