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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: jiangds05 on December 08, 2010, 11:38:22 PM

Title: what kind of cooling appratus can reach down to -108oC
Post by: jiangds05 on December 08, 2010, 11:38:22 PM

Could anyone send me a photo of set up and items those I need buy. thanks a lot! I greatly appreciate your *delete me*

Title: Re: what kind of cooling appratus can reach down to -108oC
Post by: Fluorine on December 08, 2010, 11:51:57 PM

Liquid nitrogen can take it down that far and a bit more, though I'm not sure what vessel you'd require.

Title: Re: what kind of cooling appratus can reach down to -108oC
Post by: Cesium-137 on December 20, 2010, 12:41:56 AM

If its just a cold bath your looking for, EtOH + liq N2 will get you there. Use a vacuum dewar and slowly add N2 to EtOH. I think a 50/50 solution should get you well past 100 C!