Chemical Forums
Chemistry Forums for Students => Organic Chemistry Forum => Organic Chemistry Forum for Graduate Students and Professionals => Topic started by: zuriel on January 13, 2018, 08:20:24 PM
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Hi,
I want to try a particular reaction at -10 degC and I'm looking for suggestions on how to go about this. I've had a salt-ice bath suggested (1:1 ratio salt:ice by weight) but I'm wondering are there any other methods that any of you might know of?
Cheers!
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Ice/Calcium chloride 1:1
Liquid N2/Ethylene glycol
Ice/Acetone 1 :1
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Hi,
I want to try a particular reaction at -10 degC and I'm looking for suggestions on how to go about this. I've had a salt-ice bath suggested (1:1 ratio salt:ice by weight) but I'm wondering are there any other methods that any of you might know of?
Cheers!
these lists are pretty useful as a reference
https://en.wikipedia.org/wiki/List_of_cooling_baths
https://en.wikipedia.org/wiki/Cooling_bath
One could also try to find a walk in freezer or adjustable fridge.
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The easiest is to pour sodium chloride over wet ice and stir well.
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Thanks everyone, I tried the liquid nitrogen/glycol and salt/ice suggestions and they both worked quite well!
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Liquid N2 sounds a bit cold for -10C. I was going to suggest dry ice in IPA. Even that might be too cold.