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3 years, 5 months ago

What can I use to transport/store 4+ liters of liquid nitrogen on a short term basis other than a dewar.

I know that you can use a thermos but I am looking for a cheap substitute that LN2 suppliers might actually dispense into. (also, I would accept an answer that gives me a good lead on getting a used dewar for relatively cheap - aka under $100)
Tip for best answer: M$5.00
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gahaga's Avatar
gahaga | 3 years, 5 months ago
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A dry vapor shipper will do the trick. They will spill if inverted and the core will absorb some of the LN2, but the cavity is plenty large enough. I'd recommend the MVE over the others, based on my experience. not cheap, either, but solves the problem. Technically, it's not a dewar, but pretty close..

http://www.e-cryo.com/SearchResult.aspx?CategoryID=4

Aside from that, I would suggest a large glass flask/bottle surrounded by packaging peanuts in a cardboard box. It should work fine as long as you don't cork it.
source(s):
On second look, I'd recommend Stainless over glass. The SS "Tranfer containers" are only $300. I believe the belly of a dewar is aluminum, which should work, too.

http://www.e-cryo.com/SearchResult.aspx?CategoryID=2

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powerfulmask | 3 years, 5 months ago
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deepcryo | 3 years, 5 months ago
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Hi there. I use about 100,000 gallons of LN2 a year. Cheapest? You can transport it in a styrofoam cooler. The smaller the better. (It will crack the inside liner of an Igloo cooler, but that will work, even with the cracks, if you have an old one laying around.) It will slosh if transported in a car. Be cautious to not allow any chance of sloshing onto jeans or shirt. They will wick long enough to cause serious thermal burns/frostbite. (Most people don't know this but you can plunge a BARE hand in and out 1 second with no bad effect, it is wearing a WICKING glove or cotton sleeve that could create a serious issue. ) 1 gallon of LN2 will evaporate into roughly 94 cubic feet of gaseous nitrogen. Not enough to displace all the oxygen in your car over three hours, unless you spill the whole thing at once. (In which case just open all the windows for a minute.) Nitrogen is inert, non toxic and 70% of what you are breathing right now. It should last for 3 hours if covered. When I say covered, I mean styrofoam igloo with NO SEAL. DO NOT put a lid on a thermos or jug, or you will create a bomb. LITERALLY. Hope this helps. Have fun, and use your head. Can you use dry ice instead? (-110F) vs LN2 at -(323F)?
source(s):
40 years in the business.

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prescottp | 3 years, 5 months ago
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Being that this is a very scientifically specific question that deals with the field of cryogenics, my suggestion would be to contact 300 Below, Inc., located in Decatur, IL, as they are the world leaders in cryogenic tempering, cryogenic processing, and cryo technology. They can likely help you find answers to common questions about Liquid Nitrogen (LN2) including how to best transport liquids. Their metallurgist is John Koucky and you can reach him by calling 217-423-3070 during normal business hours, CST. John can help you find a used dewar or even sell you one at a fair price if they have any around.
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tboz's Avatar
tboz | 3 years, 5 months ago
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you can use any thermos just don't seal it shut too tight you can use multiple large thermoses

one site even recomends coffee thermus

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clarksbrother | 3 years, 5 months ago Report

Thanks for the suggestion but as stated in the question I'm aware of that solution but am looking for something that can hold 4+ liters.

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duane's Avatar
duane | 3 years, 5 months ago
4
Use a vacuum thermos *with a rubber handle*. Use gloves, don't seal.

Also, upon searching for a valid source to back up my claim, I stumbled upon this:
http://en.wikipedia.org/wiki/Liquid_nitrogen_economy

Really cool.
source(s):
My various chemical escapades.

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clarksbrother's Avatar
clarksbrother | 3 years, 5 months ago Report

Thanks for the suggestion but as stated in the question I'm aware of that solution but am looking for something that can hold 4+ liters.

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kenford | 3 years, 5 months ago
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For liquid nitrogen, you want an insulated container with a lid that doesn't make an air-tight seal. Some companies will sell you a dewar or special thermos made just for this purpose. Another idea is to use a big insulated plastic coffee mug. The mug is nice because it has a small hole at the top to prevent pressure buildup of vaporizing nitrogen, plus it has the advantage of being inexpensive. You can get about as much dry ice as you think you will need, because it doesn't sublime too quickly when insulated. Get a bit more liquid nitrogen than you will need for your project, because it evaporates rapidly.

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hartwell's Avatar
hartwell | 3 years, 5 months ago
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more than a gallon? are you insane? don't drive with the windows rolled up. you need oxygen to breath.

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clarksbrother's Avatar
clarksbrother | 3 years, 5 months ago Report

Stupid oxygen...who needs it anyways ;)

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smashcats | 3 years, 1 month ago Report

I have to ask why you would need it If you were a teacher you would know were to get such equipment to transoprt the product, I have to warn you unless you want to DIE and fast dont mess around with contaners if it should happen to not VENT buld pressure your dead booom and i mean big boom a small plastic water bottle with less the 1/3 cup with lid on will go off like bomb so unless you know 100% what you are doing dont do what your thinking of doing ANYONE SELLING YOU THIS PRODUCT WITH OUT PUTTING IT IT CORRECT CONTANER BREAKING LAWS TRANSPORT CANADA OR THE US TRANSPORT LAWS.
bad bad bad

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