Journal of Molecular Liquids ( IF 6 ) Pub Date : 2021-01-02 , DOI: 10.1016/j.molliq.2020.115271 Anoosha Borra , Ravi Kumar Kosuru , Ram Bharadwaj , Satyavathi B
The solubility of Furan 2-carboxylic acid is determined experimentally in seven mono solvents toluene, hexane, diisopropylether, 1, 2–dichloroethane, acetonitrile, methylisobutylketone, methanol at temperatures ranging from 283.15 K – 333.15 K and five binary systems toluene + hexane, diisopropylether + hexane, 1, 2–dichloroethane + hexane, methylisobutylketone + hexane, ethanol + hexane at 293.15 K – 333.15 K using isothermal saturation method at the atmospheric pressure of 95.5 kPa. The results indicated that Furan 2-carboxylic acid solubility in mono and binary systems increased with increase in temperature at a measurable range and was in the decreasing order of methanol > methylisobutylketone > acetonitrile > 1,2–dichloroethane > diisopropylether > toluene > hexane. The experimental solubility data obtained using mono and binary systems is correlated with Van't Hoff, Modified Apelblat, Buchowski, CNIBS/R-K, Jouyban – Acree, modified Van't Hoff–Jouyban–Acree, modified Apelblat–Jouyban–Acree thermodynamic models. The data is in good harmony with the Modified Apelblat equation for most of the solvent systems and the models CNIBS/R-K method showed least deviation for diisopropylether + hexane system with an RAD 0.65%.
中文翻译:
呋喃2-羧酸在单和二元体系中的溶解度测量和建模
实验确定了呋喃2-羧酸在七种单溶剂甲苯,己烷,二异丙醚,1、2-二氯乙烷,乙腈,甲基异丁酮,甲醇中的溶解度,温度范围为283.15 K – 333.15 K,以及五种二元体系甲苯+己烷,二异丙醚在95.5 kPa的大气压下,采用等温饱和法,在293.15 K – 333.15 K下,用+己烷,1,2-二氯乙烷+己烷,甲基异丁基酮+己烷,乙醇+己烷。结果表明,呋喃2-羧酸在一元和二元体系中的溶解度在可测量范围内随温度的升高而增加,并且依次为甲醇>甲基异丁基酮>乙腈> 1,2-二氯乙烷>二异丙醚>甲苯>己烷。使用一元和二元系统获得的实验溶解度数据与Van't Hoff,改良的Apelblat,Buchowski,CNIBS / RK,Jouyban – Acree,改良的Van't Hoff–Jouyban–Acree,改良的Apelblat–Jouyban–Acree热力学模型相关。对于大多数溶剂系统,该数据与修改后的Apelblat方程非常吻合,CNIBS / RK方法的模型显示,RAD为0.65%的二异丙醚+己烷系统的偏差最小。