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Rotary evaporator

Kent Wang

By Kent Wang
in Kitchen Consumer

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adey73

adey73

Posted
Posted
On 4/15/2016 at 3:03 AM, Duvel said:

if you are interested in the destillates, tap water as the cooling medium will most likely insufficient.

If you let me know the specs of your vacuum pump and your desired application ( reduction of water-based solutions, alcohol etc.) I can give you an definite answer ...

 

if you want to go -10c in the condenser what cooling liquid do you use ..... and if it's alcohol based won't it evaporate?

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Duvel

Duvel

Posted
Posted
27 minutes ago, adey73 said:

 

if you want to go -10c in the condenser what cooling liquid do you use ..... and if it's alcohol based won't it evaporate?

Normally, I’d go with an ethylene glycol / water mixture. The 50%/50% mixture has a freezing point of around -37 oC, so that should be fine with your primary cooling source. Evaporation is not a major issue; your cooling circuit should be well closed in any case.

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