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| Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists. |
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#1
 2003-11-25, 23:16 |
IsoPure 
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 Stirring at -10 C ???
A synth recipe im looking at in my dream is saying the contents were stirred at -10 Celcius.
My question, whats the easiest way to acheive -10 Celcius?
Would I best to create a cold-room (kinda like a large walk-in freezer) or, how could I get the single flask/container down to -10 for the half hour stirring???
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#2
2003-11-26, 00:04 |
kman
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Re: Stirring at -10 C ???
Maybe dry ice would be a good start.
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#3
2003-11-26, 04:52 |
kirby
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Re: Stirring at -10 C ???
immerse the object in a dry ice/acetone bath
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#4
2003-11-26, 19:22 |
tryptamine
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Re: Stirring at -10 C ???
Dry ice acetone is too extreme.
A salt ice water bath will get you to -10 to -15 degrees C.
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#5
2003-11-26, 19:58 |
IsoPure
Regular
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Re: Stirring at -10 C ???
Good suggestions.
What about buying a deep freezer that reaches -10 C, and putting the container/reaction with an electric mixer inside??
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#6
2003-11-26, 22:28 |
madchemist
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Re: Stirring at -10 C ???
What rxn are you performing, may I ask?
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#7
2003-11-26, 22:32 |
madchemist
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Re: Stirring at -10 C ???
Oh yeah alcohol/ice/salt bath or maybe acetone/ice/salt or something will reach around -10C to -14C. No dry ice needed just yet.
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