There are many factors to consider when purchasing a laboratory rotary evaporator, such as the price of a rotary evaporator, the rotary evaporator manufacturer, the characteristics of a rotary evaporator, etc.

As a common laboratory instrument, the rotary evaporator often requires the help and guidance of professionals. However, due to problems such as roads and expenses, the maintenance personnel cannot provide timely assistance when the instrument fails or needs to be replaced. Therefore, we first understand the performance characteristics of the instrument. Only after we fully understand it can we be more convenient and handy in the future use process. I think this is an indispensable part.

Features of the new rotary evaporator:

1. Precise mechanical design and manufacturing ensure the interchangeability of product parts and components, thus making maintenance very convenient.

2. Flexible combination, on the basis of basic equipment, you can install inclined or straight condensing tubes by purchasing different interfaces. Rotating bottles have a regular diameter of 24 and 29

3. Compatible with imported spare parts, such as: sealing ring, condenser pipe, etc.

4. The smooth operation and the extraordinary cost of fine machining make the components of the mechanical device precisely fit and operate very smoothly.

5. Beautiful appearance and elegant surface treatment are special ones in the same category.

When purchasing a rotary evaporator, the following questions should be clarified:

1. Defining the specifications of the rotary evaporator

The specifications of the rotary evaporator are usually divided by the volume of the evaporation flask. The size of the required evaporation flask depends on the amount of material to be evaporated. Generally, the 2L, 3L, and 5L rotary evaporators are suitable for small-scale laboratory tests; 5L, 10L, 20L is suitable for pilot test; 20L, 50L is suitable for pilot test and production. Of course, in special cases, it is also possible to expand the volume of the evaporation bottle by means of a continuous feed tube, thereby expanding the amount of continuous distillation to some extent.

2. Defining the required distillation task of the rotary evaporator. The distillation efficiency of the rotary evaporator determines the number of samples that can be distilled per day. In the case of the same solvent, the higher the distillation efficiency, the more the number of samples distilled. . If the sample size is large, you need to think more about the distillation efficiency when purchasing a rotary evaporator.

3. Security risk assessment

The safety risks of distillation are mainly derived from the solvent and heating medium of the distillation.

1) If the heating medium is silicone oil, the ignition point is at least 25 °C above the maximum temperature of the heating pot.

2) If the distillation solvent is flammable or explosive, the explosion-proof glass component is a good choice. If the distillation is finished, the instrument should be deflated automatically, so as not to artificially deflate too quickly, causing an explosion.

3) Optimize the laboratory environment, and choose the secondary condensing device to maximize the recovery of the distillation solvent.