Solubility of o-Phthalic Acid in Methanol + Water and Methanol + Butyl Acetate from (295.87 to 359.75) K Ren, B.Z.; Hou, C.H.; Chong, H.G.; Li, W.R.; Song, H.J.; Journal of Chemical & Engineering Data 2006, 51, 2022-2025