Solubility Measurement and Correlation of the Insecticide Thiamethoxam in Six Monosolvents and Two Binary Solvent Mixtures at Different Temperatures,Journal of Chemical & Engineering Data

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Solubility Measurement and Correlation of the Insecticide Thiamethoxam in Six Monosolvents and Two Binary Solvent Mixtures at Different Temperatures
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-12-09 , DOI: 10.1021/acs.jced.0c00752
Jiao Sha ₁ , Yingge Chang ₁ , Zibo Huang ₁ , Zidan Cao ₁ , Xiaoran Hu ₁ , Yameng Wan ₁ , Renren Sun ₁ , Haixia He ₁ , Gaoliang Jiang ₁ , Yu Li ₁ , Tao Li ₁ , Baozeng Ren ₁

Affiliation

The solubility and thermodynamic properties of thiamethoxam in six monosolvents [acetone, dichloromethane, dimethylformamide (DMF), methyl acetate, ethyl acetate, and 1-methyl-2-pyrrolidinone (NMP)] and two binary solvents (DMF + ethyl acetate and NMP + ethyl acetate) were reported. Solubility determinations were performed through the laser monitoring method at T = (278.15–323.15) K and p = 0.1 MPa (except for dichloromethane at 273.15–313.15 K). The measurement results demonstrated that the solubility of thiamethoxam in all of the six monosolvents and two binary solvents shows a positive relationship with temperature variation, and with the mass fraction of positive solvents (DMF, NMP) in the binary mixed solvents increasing, the solubility of thiamethoxam also increases. Then, the recorded solubility of thiamethoxam in all monosolvents was regressed by λh, modified Apelblat, two-suffix Margules, NRTL, and UNIQUAC models, while the solubility of thiamethoxam in two binary solvents was regressed by λh, modified Apelblat, three-suffix Margules, NRTL, and UNIQUAC models. Furthermore, by calculating the deviation between the experimental data and the regression data, it shows that the modified Apelblat model can provide more accurate correlation results for the solubility of thiamethoxam in all of the solvents studied.

中文翻译：

杀虫剂噻虫嗪在六种单溶剂和两种二元溶剂混合物中在不同温度下的溶解度测量及相关性

噻虫嗪在六种单溶剂[丙酮，二氯甲烷，二甲基甲酰胺（DMF），乙酸甲酯，乙酸乙酯和1-甲基-2-吡咯烷酮（NMP）]和两种二元溶剂（DMF +乙酸乙酯和NMP +中）的溶解度和热力学性质据报道。溶解度测定是通过激光监测方法在T =（278.15–323.15）K和p下进行的= 0.1 MPa（二氯甲烷在273.15–313.15 K处除外）。测量结果表明，噻虫嗪在所有六种单溶剂和两种二元溶剂中的溶解度与温度变化呈正相关关系，并且随着二元混合溶剂中正溶剂（DMF，NMP）的质量分数增加，其溶解度噻虫嗪也增加。然后，噻虫嗪在所有monosolvents记录溶解度通过λ回归ħ，改性Apelblat，双后缀马尔古莱斯，NRTL和UNIQUAC模型，而在噻虫嗪两个二进制溶剂中的溶解度通过λ回归ħ，改良的Apelblat，三个后缀的Margules，NRTL和UNIQUAC模型。此外，通过计算实验数据和回归数据之间的偏差，表明改进的Apelblat模型可以为噻虫嗪在所有研究的溶剂中的溶解度提供更准确的相关结果。

更新日期：2021-01-14

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