For rotary vacuum evaporator, how to choose is the key. As long as you master the important skills when buying a rotary evaporator, it will be much more convenient to buy. When can we see it?
1) There are several capacity distinctions for rotary vacuum evaporator: 1L, 2L, 3L, 5L, 10L, 20L, 50L, 100L.
2) The lifting method of rotary vacuum evaporator is divided into manual and automatic, and the automatic lifting can also be divided into automatic lifting of water bath pot and automatic lifting of evaporation bottle. Automatic lifting is mainly for those who use it frequently. Automatic lifting is a little more labor-saving. In fact, the advantage of water bath lifting is that it can protect the evaporation bottle and the glass shaft is not easily damaged. Manual lifting is more affordable from an economic point of view.
3) Appearance of rotary vacuum evaporator is also very important. Many users will look at the appearance. This depends on personal aesthetics. If you like the appearance, it looks good. That is, the quality of the vacuum. The higher the vacuum, the faster the evaporation speed. Generally, the vacuum can reach 0.098mpa. The quality of the vacuum is also closely related to the sealing ring. Generally, the sealing ring is of better quality and more corrosion-resistant, so that any flux will not affect the vacuum pump. The quality of airtightness is greatly affected by the design development level, manufacturing level and research of different corporate brands. The specific analysis can be measured by "reaching vacuum degree" and "vacuum pressure holding time".
4) Look at the power of rotary vacuum evaporator. The power has a great influence on the evaporation rate, especially for substances with large latent heat of evaporation, such as water. When gasifying, it absorbs a lot of heat energy, and the evaporation rate is almost proportional to the heating power.
Please refer to the above points to choose the most suitable one for your needs when purchasing rotary vacuum evaporator.
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