Rotary evaporators

Rotary evaporators are laboratory instruments that remove solvents from a sample by lowering the pressure above a rotating flask and heating it gently in a water bath, so evaporation happens well below the solvent's normal boiling point. The rotating flask spreads the liquid into a thin film across its inner wall, which speeds the process and protects heat-sensitive compounds. On Questpair, 252 rotary evaporators are listed from 13 verified suppliers and distributors across 8 countries, in new, used and refurbished condition. Of those listings, 72 percent are used. Prices run from EUR 44 to EUR 47.349, so both compact benchtop units and large production-scale systems appear in the same laboratory catalogue.