Solid鈥揕iquid Phase Equilibrium of Phosphoramidic acid, N,N鈥?1,2-Ethanediylbis-P,P,P鈥?P鈥?tetraphenyl Ester in Selected Solvents

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• 作者：Baokuan Chen ; Chaojun Du ; Hui Zhou ; Jingjing Wang ; Lijuan Wang
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2015
• 出版时间：June 11, 2015
• 年：2015
• 卷：60
• 期：6
• 页码：1693-1698
• 全文大小：293K
• ISSN：1520-5134

文摘

Phosphoramidic acid, N,N鈥?1,2-ethanediylbis-P,P,P鈥?P鈥?tetraphenyl ester (PAETE) was prepared and characterized by elemental analysis (EA), mass spectra (MS), infrared spectroscopy (IR), and nuclear magnetic resonance (NMR). The thermostability of PAETE was measured via thermogravimetric analysis (TGA). The melting temperature and the fusion enthalpy of PAETE were evaluated by differential scanning calorimeter (DSC). The solubilities of PAETE in ten selected solvents were obtained using a gravimetric method. The experimental data were well correlated by the Buchowski鈥揔siazczak (位h), Scatchard鈥揌ildebrand, modified Apelblat model, and the ideal equations. The solubility parameter of PAETE was estimated by the Scatchard鈥揌ildebrand Model. The dissolution enthalpy and entropy of PAETE in the ten selected solvents were also calculated by the modified Apelblat model.