what besides a dewar can i use

[natedog420]

ok i will be benching a quarter mile from were i get ln2 to the garage were i will be. can i use a big thick thermos or something else? dont have money for dewar at this point but i would like to do some short bench's with ln2. i dont care if the thermos is junk after 2-3 times of use just wanna know if possible. any feedback is very appreciated.

:toast:

[harleybro]

I use stainless thermoses all the time. This will only hold 1L. I have heard it is possible to use a large cooler. I will note that I would see this as being dangerous due to the LN2 spalshing and it wouldn't be a good idea to seal either the cooler or thermos due to LN2 boiling off and creating pressure in the container. When I use thermoses I have them uncovered.

[[XC] gomeler]

Well.. you can use a dewar instead of a dewar ;) I personally wouldn't fool around with that stuff, perhaps you could use a vacuum thermos but transporting an open container of LN2 in a vehicle just sounds like a recipe for frostbite if there's an accident. Can't just rent a small dewar from the company for a weekend?

[boshuter]

The Praxair dealer where I lived offererd to fill a cooler for me before I got my dewar... I'm not recommending this, but if you only have to go 1/4mi., then you can probably get by IF your dealer will do that.

Just use a large cooler without a locking lid, stick it in the trunk or back of a pickup truck and drive slowly ;)

Like harley pointed out, whatever you use, don't have it tightly sealed, you have to let the pressure of the boiling ln2 escape.

[T_M]

Large vacuum thermoses should be fine.
I've got one that at least 2-3L big.

[natedog420]

thanks guys for you input. i will see if they rent dewars not sure if they do or not. i will let you guys know what i end up getting.:up: