Through the saturation shake-flask technique, the solubility of 3,5-dinitrosalicylic acid in 14 pure solvents such as ethylene glycol (EG), ethanol, n-propanol, ethyl acetate, isopropanol, acetonitrile, N,N-dimethylformamide (DMF), N-methyl-2-pyrrolidinone (NMP), n-butanol, isobutanol, dimethyl sulfoxide (DMSO), water, cyclohexane, and 1,4-dioxane was determined over the temperatures from 278.15 to 323.15 K at an ambient pressure of about p = 101.2 kPa. As the studied temperatures increased, the magnitude of mole fraction solubility of 3,5-dinitrosalicylic acid in the above pure solvents increased positively and followed the decreasing order as NMP > DMF > DMSO > ethanol > ethyl acetate > n-propanol > 1,4-dioxane > isopropanol > EG > isobutanol > n-butanol > acetonitrile > cyclohexane > water. The molecule interactions of solvent–solute and solvent–solvent were checked through a linear solvation energy relationship. The determined solubility was mathematically described by the Wilson model, Apelblat equation, NRTL model, and λh equation. The obtained root-mean-square deviation values and relative average deviation values were not greater than 52.93 × 10^–4 and 6.04 × 10^–2, respectively. Also, the mixing properties, reduced excess enthalpy, and activity coefficients at infinitesimal concentration were derived in terms of the Wilson equation.

中文翻译：

---

3,5-二硝基水杨酸在278.15至323.15 K的温度下在十四种纯溶剂中的溶解度

通过饱和摇瓶技术，3,5-二硝基水杨酸在14种纯溶剂中的溶解度，例如乙二醇（EG），乙醇，正丙醇，乙酸乙酯，异丙醇，乙腈，N，N-二甲基甲酰胺（DMF） ，ñ -甲基-2-吡咯烷酮（NMP），ñ丁醇，异丁醇，二甲亚砜（DMSO），水，环己烷，和1,4-二恶烷，测定在温度为278.15到323.15处的K约环境压力p= 101.2 kPa。随着研究温度的升高，3,5-二硝基水杨酸在上述纯溶剂中的摩尔分数溶解度大小呈正向增加，并以降序依次为NMP> DMF> DMSO>乙醇>乙酸乙酯>正丙醇> 1,4 -二恶烷>异丙醇> EG>异丁醇>正丁醇>乙腈>环己烷>水。通过线性溶剂化能量关系检查溶剂-溶质和溶剂-溶剂的分子相互作用。所确定的溶解度数学上由Wilson模型，Apelblat方程，NRTL模型，和λ描述ħ方程。获得的均方根偏差值和相对平均偏差值不大于52。^–2分别。同样，根据威尔逊方程，得出了混合特性，降低的过量焓以及在最小浓度下的活度系数。