© 2015 by TechConnect. All rights reserved.2-Butoxyethanol (2BE) was examined as a draw solution for forward osmotic application. the osmolality of 40wt% of 2BE aqueous solution was 2 times higher than that of 3.5wt% salt water in freezing point depression measurement. in forward osmosis experiments, 2BE induced a water flux of 0.0028m/h, 68% of that of 3.5wt% salt water when used as the draw solution under static conditions for 5 h. under stirring at 7000 rpm, 2BE induced a water flux of 0.02 m/h, 1.2-fold that of 3.5wt% salt water in the initial 5 min. the effect of stirring is explained by breaking the concentration polarization or 2BE aggregates at the membrane surface. aqueous 2be solution, which is generated after forward osmotic application such as power generation and desalination, is known to have a lower critical solution temperature. aqueous 2BE solution of the concentration from 12wt% to 58wt% separates into two phases (liquid-liquid) at elevated temperatures higher than 60 °c, allowing the 2BE-rich and water-rich phase to be recovered for the next cycle of the application. we conclude that aqueous solutions of 2BE could be a good drow solution under suitable conditions, such as with highspeed cross flows.