What does a water oil bath do in the rotary evaporator system

What is a water oil bath

Water oil bath is widely used in distillation, drying, concentration and impregnation of chemicals or biological products. It is an ideal and necessary tool for laboratories of environmental protection, scientific research, health, epidemic prevention, petroleum, metallurgy, chemical industry, medical treatment and other units in major universities and colleges. A water oil bath adopts imported stainless steel liner, and the outer shell adopts electrostatic spray plastic, which has the advantages of beauty, generosity, durability and so on.

One use of the water oil bath is to guide air through the water oil bath to filter particles from the air. This type of air filter is used in car and tractor engines, but it has been replaced by modern paper air filters, while some small engines continue to use this system.

What does a water oil bath do in the rotary evaporator system

Generally, a water oil bath will have a digital or analog interface, which is for users to set the precise temperature required. The applications of a water oil bath include heating reagents, melting substrates, culturing cell cultures, and culturing bacterial flora.

For a water oil bath, it can be used at temperatures up to 99.9 ° C. When the temperature is above 100 ° C, other methods such as oil bath, sand bath, and so on are the suitable methods.

During the working process of a rotary evaporator system, a water oil bath is to provide heating energy to the evaporation flask, in order to get substances and materials within the evaporation flask evaporated into gas. Therefore, a water oil bath is the main heating source of the rotary evaporator system.  

rotary evaporator
rotary evaporator

How many types of water oil bath do we have in chemical labs

Water oil bath is a laboratory equipment that can be used for heating. It is used for heating samples at a constant temperature for a long time. According to different heating media, it is divided into water bath, oil bath, sand bath, and silicone bath.

Generally, the water oil bath can be mainly divided into circulating water bath, non-circulating water bath, shaking water bath.

rotary evaporator
rotary evaporator
  1. Circulating water bath: includes water bath with inlet and outlet, while the inlet and outlet are connected by pipeline. The advantage is that the pre-cooling pipeline is added, so that it not only has the heating cycle function, but also can use the air to perform forced cooling when the temperature needs to be cooled.
  2. Non-circulating water bath: avoids the excessive violentness caused by direct heating and the uncontrollability of temperature, and can be heated smoothly. Many reactions require strict temperature control, which requires water bath heating. The disadvantage of water bath heating is that the maximum heating temperature can only reach 100 degrees.
  3. Silicone bath: with additional shake control, and can shake the liquid.

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