TBP and solvents (1) through (3) were exposed to moisture over a two-week period and the change in sample weight and water content was determined. An acrylic desiccator cabinet had two holes drilled into it on opposite sides and was fitted with plastic hose barbs. The cabinet was then purged with N2 flowing through a gas bottle filled with water. The cabinet was able to maintain a relative humidity of around 80% under these conditions, as measured by a Dwyer Series 485 digital hygrometer. Glass vials were loaded with 1 g each of solvent, weighed, and stored with their caps off inside the humidification chamber. The weights were recorded once during the two-week test span and at the end of the experiment; the water content was determined by Karl Fisher titration before and after the two-week span.