What can be used instead of rotary evaporator?

What can be used instead of rotary evaporator?

All Answers (7) You can simulate a rotary evaporator by monting a system compraised of an erlenmeyer over a hot plate magnetic stirrer or a heated ballon, conected to a inclined condenser.

Why are rotary evaporators better?

Removal of solvent by a rotary evaporator is superior to evaporation under atmospheric pressure for many reasons. The process is much quicker (often takes less than 5 minutes), uses lower temperatures (so decomposition is unlikely), and uses less energy than boiling with a heat source.

For what purpose is a rotary evaporator?

What are Rotary Evaporators? A rotary evaporator (also called as “rotavap” or “rotovap”) is a device used in labs for the efficient and gentle removal of solvents from samples by evaporation.

Can you evaporate water with a rotary evaporator?

Evaporation rate depends on the power of the vacuum pump you use in the rotary evaporator, and the temperature in the water bath. Try to increase them. Also, because you need a small amount of sample to inject in the HPLC, you can put an aliquot of your sample in a speedvac machine, that is more efficient.

Who invented rotary evaporator?

Lyman C. Craig
A simple rotary evaporator system was invented by Lyman C. Craig. It was first commercialized by the Swiss company Büchi in 1957.

Can rotary evaporator remove water?

By using the rotary evaporator to remove water, you would need less lenient conditions and longer process times, which can lead to degradation of more sensitive samples.

What is one of the main principles behind rotary evaporation?

The rotovap works by increasing the rate of evaporation of the solvent by (1) reducing the pressure to lower the solvent boiling point, (2) rotating the sample to increase the effective surface area and (3) heating the solution.

What are the main components of a rotary evaporator?

The main components of a rotary evaporator or “rotovap” include a motor unit, a vapor duct, a vacuum system, a heated fluid bath, a condenser with either a coil passing coolant, or a “cold finger, a condensate-collecting flask and a mechanical or motorized mechanism.

How fast should a rotary evaporator spin?

250–280 rpm
In general, a speed of 250–280 rpm is recommended for maximum turbulence in benchtop-scale rotary evaporators, but factors such as solvent and sample consistency, flask size, and fill level may change this.

Can you rotovap methanol?

In rotary evaporator, you should maintain the temperature and vacuum according to solvent. Vitor sir is right, in general 40ºC is suitable of methanol, but when its a mixture of methanol and water then approx 45-50ºC is required otherwise it takes too much time.

What types of flask can be used on a rotary evaporator?

Evaporating Flasks, Pear-Shaped These pear-shaped evaporating flasks can be used as boiling type flasks for rotary evaporators.