The principle: A widely used evaporation instrument in laboratories. Suitable for reflux operations, rapid evaporation of large volumes of solvents, concentration of trace components, and reaction processes requiring stirring. The rotary evaporator system can be sealed and reduced to 400-600 mmHg; the solvent in the distillation flask is heated by a heating bath, with the heating temperature approaching the boiling point of the solvent; at the same time, it can also be rotated at a speed of 50-160 rpm, forming a thin film of solvent to increase the evaporation surface area. Additionally, under the action of the cooler, the hot vapor can be quickly liquefied, accelerating the evaporation rate.
Rotary Evaporators are primarily used for concentration, crystallization, drying, separation, and solvent recovery in industries such as chemicals and biology. The principle involves heating the rotating flask at a constant temperature under vacuum, creating a large-area film of material on the bottle wall. Solvent vapor is then condensed by a glass condenser and collected, significantly enhancing evaporation efficiency. Particularly suitable for the concentration and purification of biological products that are prone to decomposition and denaturation at high temperatures.
Definition: A device for rapid liquid sample concentration. The sample is heated, depressurized, and continuously rotated to increase the surface area of the evaporating phase, thereby accelerating the evaporation rate.
