Determination and correlation of solubilities of 1,2-bis (2-oxo-5,5-dimethyl-1,3,2-dioxyphosphacyclohexyl-2-imino) ethane in selected solvents

作者：Qi Chun Mei; Wang Li Sheng^*; Du Jun Chao; Yu Guo Min; Sun Gui Qin

来源：Fluid Phase Equilibria, 2013, 360: 343-350.

DOI：10.1016/j.fluid.2013.09.058

• Solubility
• Phosphorus-nitrogen compounds
• Flame retardant
• Organic solvents

1,2-Bis (2-oxo-5,5-dimethyl-1,3,2-dioxyphosphacyclohexyl-2-imino) ethane (BPEA) was prepared, and characterized by elemental analysis (EA), mass spectra (MS), infrared spectroscopy (IR) and nuclear magnetic resonance (NMR). The melting point and the enthalpy of fusion of BPEA were performed on differential scanning calorimetry (DSC), and the thermal stability of BPEA was tested by thermogravimetric analysis (TGA). The solubility of BPEA in selected solvents was measured by a static analytical method. The experimental data were correlated with different thermodynamic models, such as the empirical equation and non-random two liquid (NRTL), Wilson, Scatchard-Hildebrand, and universal quasi chemical (UNIQUAC) equations. The calculated results showed good agreement with the experimental data in the temperature range studied.

• 出版日期2013-12-25
• 单位北京理工大学