The Role that a Cold Trap Plays in a Rotary Evaporator

[ux_image id=”19705″ height=”86%” margin=”0px 0px 0px 0px” lightbox=”true” caption=”true” image_hover=”glow” image_hover_alt=”zoom”] [gap] Generally, a rotary evaporator is primarily composed of four components, including a water bath for heating, a motor for rotating the evaporation flask, a condenser for condensing the evaporated sample as well as a cold trap. Many people may wonder the role that … Read more

Why do We Use Rotary Evaporator?

[ux_image id=”24533″ height=”62%” margin=”-40px 0px 0px 0px” lightbox=”true” caption=”true” image_overlay=”rgba(0, 0, 0, 0.1)” image_hover=”zoom” image_hover_alt=”zoom-long”] [gap] As an essential and common lab equipment, a rotary evaporator is always used for concentration, crystallization, drying, separation and solvent recovery in pharmaceutical, chemical and bio-pharmaceutical fields. It is especially suitable for the concentration and purification of biological products … Read more

What is the Principle of Molecular Distillation?

As a kind of distillation technology, the molecular distillation should be carried out under a high vacuum condition. Because the average free path of steam molecules is greater than the distance between the evaporation surface and the condensation surface, the liquid mixtures can be separated by utilizing the difference of the evaporation rate of each … Read more

Rotary Evaporators’ Extraction Method

A rotary evaporator (rotovap or rotavap) refers to a kind of equipment for solvent evaporation under reduced pressure, which is composed of a vacuum system, a heated water or oil bath, a condenser and a motor that rotates the evaporation flask. As its name suggests, what is special is that the evaporation flask can rotate. … Read more

Boiling Points of Extracted Substances in a Rotary Evaporator

[ux_image id=”7882″ height=”50%” lightbox=”true” caption=”true” image_hover=”zoom” image_hover_alt=”zoom-long”] [gap] With extensive applications, a rotary evaporator can be used in a great number of fields. It can be applied for the extraction and concentration of substances in chemical labs, industry fields, and even the concentration of juices or food in the kitchen. Generally a rotary evaporator possesses … Read more

Rotary Evaporator VS. Short Path Distillation

Similarities and Differences between them Both the rotary evaporator and the short path distillation are the equipment to extract or concentrate substances from mixtures, and both are high efficient and widely used in many fields. That is to say that the rotary evaporator and short path distillation have the same function. However, the rotary evaporator can … Read more

Cooking with a Rotary Evaporator

[ux_image id=”24539″ height=”71%” lightbox=”true” caption=”true” image_overlay=”rgba(172, 169, 169, 0.09)” image_hover=”fade-in” image_hover_alt=”zoom”] [gap] As a common equipment in labs and productions, a rotary evaporator has a quite long history. With the constant development and improvement of rotary evaporator, it can not only used for evaporation, concentration, crystallization, drying, separation, and solvent recovery in pharmaceutical, chemical and … Read more

Why do People Choose to Extract CBD by a Rotary Evaporator?

  What is the Purpose of Using a Rotary Evaporator? A rotary evaporator (rotovap or rotatvap) refers to a kind of equipment for solvent evaporation under reduced pressure. It can be used for the process of evaporation, concentration, crystallization, drying, separation, and solvent recovery. And it is usually used to extract CBD from cannabis. How … Read more