Why do People Choose to Extract CBD by a Rotary Evaporator

 

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 does a Rotary Evaporator Work?

A rotavap evaporates solvents from samples by utilizing the principle that the solvent will have a lower boiling point at a reduced pressure. Specifically speaking, the stepless speed regulation is adopted to make the evaporation flask rotate at a constant speed. By the rotation, materials can form a large area of uniform thin film on the inner wall of the flask. The evaporation flask is heated evenly by a water or oil bath, and materials, with a lower boiling point, is evaporated rapidly under the vacuum condition. The solvent steam is recycled in the receiving flask after being cooled by the high efficiency glass condenser.

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

Roughly speaking, the reason is that a rotary evaporator can perfectly satisfy the conditions required by CBD extraction. Specifically, it’s closely related to the applications of the rotary evaporator as well as the properties of CBD. For one thing, the rotary evaporator is a common lab instrument used in chemical laboratory. It’s mainly adopted to distill a large amount of volatile solvents continuously under the negative pressure. It is capable of separating and purifying reaction products especially for the concentration of liquid extract and distillation of receiving fluid during the chromatographic separation. As the evaporator is vacuumized, the boiling point of the solvent to be distilled decreases. In general, the component distilled from the sample is the target component in the chemical research, such as extracting some natural component from organic synthesis sample. Generally, the rotary evaporator is used to separate components with low boiling points, such as ethane and ehtyl acetate, which are liquids at room temperature and normal pressure. Furthermore, some component in the sample can be removed through standard operation. For another thing, the CBD extraction needs lower evaporation temperature in order to avoid thermal decomposition, so the vacuum condition is required. Considering these factors, the rotary evaporator is adopted to extract CBD.

A rotary evaporator extracts CBD through extraction method. Because the main methods used to extract active ingredients (usually organic compounds) from plants include steam distillation, pressing and extraction. The distillation method is suitable for substances with high volatility, and the pressing method is suitable for the extraction of eschar materials which are liquid at normal temperature. Since the CBD has a boiling point of more than 400 degrees at normal temperature and pressure and is insoluble in water, the extraction method is the most suitable extraction method.

What is CBD?

The CBD is a type of cannabinoid, which is the main chemical component of industrial cannabis and extracted from cannabis plants. The first feature of cannabisdiol is not addictive, and it has pharmacological effects such as antispasmodic, anti-anxiety and anti-inflammatory. The second characteristic is that it can also eliminate the hallucinogenic effects of tetrahydrocannabinol (THC) on the human body, which is known as anti-drug compounds.

The CBD has significant medical value. And it not only has no hallucinogenic effect, but can reduce or offset the activity of THC, which is another chemical component in cannabis. THC is the cause of cannabis and addiction. cbd has the potential to treat a variety of diseases including arthritis, diabetes, alcoholism, multiple sclerosis, chronic pain, schizophrenia, post-traumatic stress disorder, depression, antibiotic-resistant infections, epilepsy and other psychiatric disorders. Many people want to know where to get cbd-rich products and how to use them properly to get the most out of them. For decades, in North America and elsewhere, only THC-rich cannabis products have been available to patients until now.

Rotary Evaporators for Extraction

It’s commonly known that the extraction refers to a process in which one or more components are extracted or separated from a mixture. There are a great variety of extraction equipment, such as closed loop extractor, falling film evaporator, rotary evaporator, wiped film evaporator and so on. All these extraction equipment can be used to extract or separate components from a mixture efficiently, but their structures vary from each other. The rotary evaporator is one of the most essential and efficient extraction equipment widely used in many fields, including chemical, biochemical, industrial fields and even at home.

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