Solubility measurement and correlation of 4-nitrophthalimide in (methanol, ethanol, or acetone) + N,N-dimethylformamide mixed solvents at temperatures from 273.15 K to 323.15 K Li, R.; Han, S.; Du, C.; Cong, Y.; Wang, J.; Zhao, H.; The Journal of Chemical Thermodynamics 2016, 103, 99-106