Dry Ice and Liquid vessel ?

G

gredpe3

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Sep 22, 2012
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I am starting a search for materials I can use to make a container for the Dry Ice and Liquid Cryo Treatment.Need ideas for vessels and possible liquids.
If someone has a definant { DO NOT } this would also be helpful.Thanks for any help.I have not Googled or U-Tube it,to much controversial stuff out there.Even if I don't hear what I want to hear/I know you guys will point me in the correct direction.I already have safety equipment /heavy gloves,googles,respirator,well vented shop area.
Eddie
 
Do not use any sort of plastic. Also don't confuse dry ice and any liquid with cryo.
Dry ice and alcohol will go -109, 110, cryo is LN -300
Ken
 
Thanks for the correction,sub -zero is what I'm shooting for.CPM S35VN.
Eddie
 
Last edited:
Any metal container will work. Wrapping it with insulation or putting it in a cooler will prolong the slurry a little bit, but it lasts for hours just sitting in the bucket.

Liquids to put the dry ice in are going to be hydrocarbons. Acetone and kerosene are two that are used, but by far the best choice is plain old methanol or ethanol ( AKA -wood alcohol, denatured alcohol, etc.). You can get it by the gallon at the hardware store in the paint department. When done with a batch, let it sit until the dry ice is evaporated, then pour the alcohol back into the can and place the cap on loosely for about six hours ( then tighten the cap). You can re-use the alcohol for sub-zero treatment as many times as you wish. Label the can so you know that it is the sub-zero liquid, as it will be slightly carbonated, and will not be the best for using as a solvent.

General use:
Break the dry ice into chunks and add to the liquid. It will boil and smoke ( CO2 gassing off) for a while, and then settle down to a slowly bubbling slurry at -100F. Place the blades in and let sit for about 5-10 minutes. There is no gain by a longer soak at this temperature.

As said sub-zero treatment is the bottom of the quench, and is at -100F. Cryogenic treatment is done in liquid nitrogen and is at -300+F
 
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