Hi all! We're trying to dissolve a mixture of organic matter with a solvent that is highly volatile. Currently, we have to shake the solution very frequently to ensure the organic matter doesn't settle down on the bottom of the flask. However, it takes a REALLY long time for the organic matter to completely dissolve and we think we could greatly speed up the process if we can use an equipment that automates the shaking. The following is a list of equipment that we have tried/thought about but all of them had some problems: Magnetic stirrer - The organic matter is too thick for the rods to spin properly. The rod quickly moves out of position and spins out of control. Overhead stirrer - The container must be closed -- the solvent evaporates too quickly and the reaction takes several days to complete. Orbital shaker - The best option so far but still not very effective. The organic matter is heavy so it settles down on the bottom and isn't really affected by the shaker. Blender - We haven't tried this but we are afraid the blender might fail since it isn't designed to operate 24 hours for several days at a time. Also, the speed is too great and its also really noisy to leave in the lab. Any ideas/recommendations on which equipment we should use will be greatly appreciated!