Laboratory rotary evaporator

A rotary evaporator is laboratory equipment used to remove or recover solvents at low pressure. This instrument is used to evaporate substances through the distillation process, to later be condensed and finally separated into their components one by one, thanks to their specific boiling points.

A common basic operation in the chemistry laboratory is the removal of a volatile organic solvent from a reaction mixture or a process such as liquid-liquid extraction. Although this operation, in principle, could be carried out by simple distillation, the most rapid and convenient method is the use of a rotary evaporator for distillation under reduced pressure. This is equipment used mostly in the pharmaceutical industry and in chemical laboratories.

What is a rotary evaporator?

A rotary evaporator is a laboratory device used for the removal or recovery of solvents at low pressure. As its name indicates, it evaporates substances through the distillation process, to later be condensed and subsequently separated into its components one by one.

This equipment has existed in laboratories around the world since the 1960s, when the BΓΌchi brand patented the first models, which had a capacity of only 1.5 liters.

Basically, it consists of an electric motor, which causes the rotation of a tube attached to a ground glass joint guide tube. A round-bottomed flask containing the solution is attached to the latter.

This flask is partially immersed in a water bath, maintaining rotation. Attached to the system is a coolant that circulates a liquid (water or antifreeze). This causes condensation of the solvent, which is recovered in a collector. 

Rotavaporator: What is it? What is it for?

A rotary evaporator is laboratory equipment used to remove or recover solvents at low pressure.

This instrument is used to evaporate substances through the distillation process, to later be condensed and finally separated into their components one by one, thanks to their specific boiling points.

This equipment is made up of an electric motor that causes the rotation of a tube attached to a ground glass joint guide tube.

The latter has a round bottom flask attached to its structure containing the solution.

Maintaining a rotational movement, this flask is partially submerged in the water. In the system there is a refrigerant that circulates a liquid (water or antifreeze), this generates the condensation of the solvent, which is recovered in a collector.

Our best selling Ice Rotavaporator:

It is suitable for chemical evaporation, distillation or separation experiments. It usually works with circulating water vacuum pump and recirculating chiller as a complete system to meet experimental and production requirements.

● The patented technology of double sealing of Teflon (PTFE) and PV rubber can guarantee the level of negative pressure.
● Wide range of main machine power supplies from 100 V to 240 V, 50/60 Hz.

Care and recommendations when using a rotary evaporator

Verify a good discharge to ground for protection of the equipment and the user.

Verify when connecting the equipment that the speed knob is disconnected.

Prevent the liquid level from reaching the ground joint, this will prevent the formation of crystals.

Do not use this device in environments containing explosive gases.

Types of Kalstein Rotavaporators:

Rotary Evaporator YR02306

It is suitable for experiment of evaporation, distillation or separation of chemicals. It usually works with water circulating vacuum pump and recirculating chiller as a whole system to meet the production and experimental requirements.

Rotary Evaporator YR02307/ YR02310:

Large capacity and large opening of evaporating flask give larger evaporation surface. The evaporating flask keeps rotating when it is constantly heated by water bath, and solvent evaporates more efficiently under vacuum condition. 

KALSTEIN UPDATE

What is your ideal Rotavaporator for the laboratory?

There are countless models, so it is normal that you do not know which laboratory rotary evaporator to buy that suits your needs. At Kalstein, we evaluate them to find what you're looking for.

Rotavaporator What is it? What is it for?

A rotary evaporator is laboratory equipment used to remove or recover solvents at low pressure. This instrument is used to evaporate substances through the distillation process, to later be condensed ...

What is a Rotary evaporator used for?

A rotary evaporator is laboratory equipment used to separate a solvent from a sample. That is to say, this equipment evaporates substances through the distillation process, to be later condensed and ...

Rotavaporator, what are its applications?

It is a necessary equipment to separate a solvent from a sample, through distillation, and then re-condense them to separate basic components from each other; This rotary distillation instrument associated...

What is a rotary evaporator?

A rotary evaporator is a laboratory device used for the removal or recovery of solvents under low pressure. As its name indicates, it evaporates substances through the distillation process, to be condensed and subsequently separated into their components one by one. This equipment exists in laboratories around the world since the 1960s, when the BΓΌchi brand patented the first models, which had a capacity of only 1.5 liters.

Rotavaporators in our Kalstein catalogue:

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