 The pot can be attached to a manifold and the contents distilled or vacuum transferred to other flasks free of soluble drying agents, water, oxygen or nitrogen.The term "solvent pot" can also refer to the flask containing the drying agents in a classic "solvent still" system.Due to fire risks, "solvent stills" have largely been replaced by "solvent columns" in which degassed solvent is forced through an insoluble drying agent before being collected.