Rotary evaporator working principle and use
Rotary evaporator is a commonly used vaporizer product, which is mainly composed of motor, distillation bottle, heating pot, condenser tube, etc. The product has the advantages of stable performance, flexible use and high reliability. Today we mainly introduce the working principle and use of the rotary evaporator, hoping to help users better apply the product. Rotary evaporator working principle By electronic control, the flask is rotated at a constant speed at the most suitable speed to increase the evaporation area. The evaporation flask was brought to a negative pressure by a vacuum pump. The evaporation flask was heated in a water bath while rotating at a constant temperature, and the solution in the bottle was subjected to heat diffusion evaporation in a rotating flask under a negative pressure. The rotary evaporator system can seal the pressure to 400-600 mmHg; the solvent in the distillation flask is heated by a heating bath, the heating temperature can be close to the boiling point of the solvent; and the rotation can be performed at a speed of 50-160 rpm. The solvent is formed into a film to increase the evaporation area. In addition, under the action of a high-efficiency cooler, the hot vapor can be quickly liquefied to accelerate the evaporation rate. Rotary evaporator use The laboratory instrument rotary evaporator is mainly used to continuously distill a large amount of volatile solvents under reduced pressure. In particular, the concentration of the extract and the distillation of the receiving liquid in the chromatographic separation can separate and purify the reaction product. The basic principle of a rotary evaporator is vacuum distillation, that is, under reduced pressure, the distillation flask is continuously rotated as the solvent is distilled. The distillation flask may be a pear or round bottom flask with a standard ground port, connected to a pressure reducing pump via a highly refluxing serpentine condenser, and the other opening of the reflux condenser is connected to a receiving flask with a grinding port for The organic solvent that is evaporated is received. There is a three-way piston between the condensing pipe and the decompression pump. When the system is connected to the atmosphere, the distillation flask and the liquid-receiving flask can be removed and the solvent is transferred. When the system is connected with the decompression pump, the system should be reduced. Pressure state. When using, depressurize first, then start the motor to rotate the distillation flask. At the end, stop the machine and then pass the atmosphere to prevent the distillation flask from falling off during rotation. As a heat source for distillation, it is often equipped with a corresponding constant temperature water tank. The glass reactor is mainly characterized by the double-layered glass. We can place the reaction material in the middle interlayer and stir the reaction under normal pressure or negative pressure. Thus, the medium in the interlayer of the glass reactor (for example, chilled liquid, heated water or heating oil) is circulated by stirring to achieve heating or cooling. It is widely used as an ideal equipment in modern biochemical new material synthesis experiments. Shanghai Jiapeng Technology Co., Ltd. specializes in: UV analyzer, three-use UV analyzer, dark box UV analyzer, black box UV analyzer, black box UV analyzer, portable UV analyzer, three-use UV analyzer, dark box , UV detectors, partial collectors, constant current pumps, peristaltic pumps, gel imaging systems, gel imaging analysis systems, chemiluminescence imaging analysis systems, photochemical reactors, vortex mixers, vortex mixers, glass chromatography columns, Gradient mixer, gradient mixer, nucleic acid protein detector, glass chromatography column, fluorescent whitening agent analyzer, fraction collector, rubber cutting instrument, blue gel cutting instrument, chromatography system and other products. Welcome to inquire. No.10 Blister Packing Staples,Metal Silver 26/6 Blister Packing Staples,Stainless Steel 26/6 Blister Packing Staples,Top Selling 26/6 Blister Packing Staples SHAOXING YIYOU STATIONERY CO.,LTD , https://www.yiyou-staple.com