Where do you buy Liquid Nitrogen?

Post » Fri Sep 16, 2011 6:50 am

hey you guys know where to buy liquid nitrogen? i want to make instant ice cream and have no clue where to buy it.
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John N
 
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Post » Fri Sep 16, 2011 7:04 am

Praxair..


Medical Supply companies
Chemical Supply companies
places that sell .... gametes :P
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Sarah Knight
 
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Post » Fri Sep 16, 2011 5:11 pm

Next on 1000 ways to die: Ice Creamed -- A man seeking the perfect batch of Ice cream dies from not following Liquid Nitrogen safety proceedures.


That said, ask your local welding company/university
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Kira! :)))
 
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Post » Fri Sep 16, 2011 5:40 pm

A local group of Libyans in the mall of the nearby parking lot. However, you may need to extract it from a bomb.
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Eduardo Rosas
 
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Post » Fri Sep 16, 2011 5:37 pm

Don't know where you are located, but my mother gets helium for her florist shop from http://www.keengas.com/ They carry most every kind of compressed gasses/liquids that would be used in industry. (google or look in your local phone directory for gas suppliers) If not, for smaller batches, you may want to try seeing if there is a Scientific Supply company you could get it shipped from. (if they even can ship it. Don't know about regulations regarding shipping) You can also see if there are any molecular gastronomy restaurants in your area. If there are, give them a call and see where they get theirs from.

Let us know how your bomb ice cream turns out if you do get a hold of some.
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Lil Miss
 
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Post » Fri Sep 16, 2011 5:55 pm

Collect a bunch of atmosphere and apply extreme pressure to it.
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Ludivine Poussineau
 
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Post » Fri Sep 16, 2011 5:30 pm

Collect a bunch of atmosphere and apply extreme pressure to it.

Dutch Oven?
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Katie Louise Ingram
 
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Post » Fri Sep 16, 2011 6:24 am

Arnold, is that you?
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OnlyDumazzapplyhere
 
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Post » Fri Sep 16, 2011 7:01 pm

The school's chemistry department's locked supply closet... :chaos:
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Nomee
 
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Post » Fri Sep 16, 2011 9:59 am

Next on 1000 ways to die: Ice Creamed -- A man seeking the perfect batch of Ice cream dies from not following Liquid Nitrogen safety proceedures.


^ This

Also OP I hope you just want to make Ice Cream I know there are some out there that are playing around with it...using it mischievously. :stare:

However as said a Local Welding Company, Medical Supply Store, Praxiar and such would work out. Could try a chemistry supply store however they might direct you to someone that deals with materials. Probably doubt it however i'm wondering if you need a special license to handle liquid nitrogen. That stuff evaporates pretty quickly and expands at quite a rapid rate if you don't use it carefully.

For those curious about LN there's some videos:

http://www.youtube.com/watch?v=gjsMV1MglA4

http://www.youtube.com/watch?v=zLWEemhtdbE&feature=relmfu

http://www.youtube.com/watch?v=PigqSwbRe0Q&feature=relmfu
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Miragel Ginza
 
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Post » Fri Sep 16, 2011 5:18 pm

Ask you High School chem or physics teacher, or same at a university.

I liked the gamete response :rofl:
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Marguerite Dabrin
 
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Post » Fri Sep 16, 2011 5:53 pm

I want to make instant ice cream and have no clue where to buy it.

Ice Cream can be bought at any grocery store.
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Kelly Osbourne Kelly
 
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Post » Fri Sep 16, 2011 9:51 am

Good places to get liquid nitrogen have already been covered by others, but if you're going to use it and have no experience with the stuff then I'd like to put in a few words on safety. Liquid nitrogen is actually pretty benign under most circumstances- sure, if you do something stupid like stick your hand in it you can get a nice case of frostburn, but ultimately touching the stuff is uncomfortable enough that any accidental contact will be brief enough that no serious damage will result (just don't splash it in your eyes... but that holds true for most chemicals). What you do need to be careful about is making sure that you never keep the stuff in a sealed container without some kind of pressure release. Doing so will result in some serious pressure building up as the liquid nitrogen slowly warms up (and returns to being a gas), and when that pressure ends up rupturing whatever container you're using the results can be http://pipeline.corante.com/archives/2006/03/08/how_not_to_do_it_liquid_nitrogen_tanks.php.

For those not interested in reading the article, here's the good part:
The cylinder had been standing at one end of a ~20' x 40' laboratory on the second floor of the chemistry building. It was on a tile covered 4-6" thick concrete floor, directly over a reinforced concrete beam. The explosion blew all of the tile off of the floor for a 5' radius around the tank turning the tile into quarter sized pieces of shrapnel that embedded themselves in the walls and doors of the lab. The blast cracked the floor but due to the presence of the supporting beam, which shattered, the floor held. Since the floor held the force of the explosion was directed upward and propelled the cylinder, sans bottom, through the concrete ceiling of the lab into the mechanical room above. It struck two 3 inch water mains and drove them and the electrical wiring above them into the concrete roof of the building, cracking it. The cylinder came to rest on the third floor leaving a neat 20" diameter hole in its wake. The entrance door and wall of the lab were blown out into the hallway, all of the remaining walls of the lab were blown 4-8" off of their foundations. All of the windows, save one that was open, were blown out into the courtyard.

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Miranda Taylor
 
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Post » Fri Sep 16, 2011 8:59 am

Ice Cream can be bought at any grocery store.


Nothing fun about that, you have to get in the car, drive to the store, wait in the only cashier line open when there are like [censored] 15 available, drive back, open it up, take it out, it's exhausting... Liquid Nitrogen is much more practical.
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Gwen
 
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Post » Fri Sep 16, 2011 3:01 pm

The company engineer who came in to investigate noted that he's seen these kinds of "repair" jobs before, generally after they've powered through something.


Now that sounds like my kind of job, traveling the country investigating the after-math of redneck engineering.

You would think that Texas A&M would have the means to hire a decent maintenance department. And furthermore, wouldn't you think the Professor or lab assistants should have known better than to continue using said tank? I mean, this is a REALLY big oversight that could have been a horrible tragedy if that thing had let off during a lab session. Aren't these guys in the business of teaching our future scholars how to do things properly and in a safe manner?
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keri seymour
 
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Post » Fri Sep 16, 2011 7:46 am

By the time I got done playing with it, I wouldn't have enough to make ice cream. I would seriously play baseball with a bushel of frozen apples.

EDIT: I do believe I've found youtube http://www.youtube.com/watch?v=JyrHkMdLAEg, well not really.
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Laura Samson
 
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Post » Fri Sep 16, 2011 1:39 pm

You would think that Texas A&M would have the means to hire a decent maintenance department. And furthermore, wouldn't you think the Professor or lab assistants should have known better than to continue using said tank? I mean, this is a REALLY big oversight that could have been a horrible tragedy if that thing had let off during a lab session. Aren't these guys in the business of teaching our future scholars how to do things properly and in a safe manner?

Having been through grad school in chemistry, I can tell you that there are many people in such institutions that are simultaneously extremely smart and unbelievably stupid. Add to that a culture that often doesn't place much value on safety (as it's viewed as something that just tends to get in the way of work getting done) and you can get some serious recipes for disaster.
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Samantha Jane Adams
 
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Post » Fri Sep 16, 2011 9:19 pm

Having been through grad school in chemistry, I can tell you that there are many people in such institutions that are simultaneously extremely smart and unbelievably stupid. Add to that a culture that often doesn't place much value on safety (as it's viewed as something that just tends to get in the way of work getting done) and you can get some serious recipes for disaster.


Yeah, it's that age old battle of book smarts vs. common sense. Come to think of it, I know better... I just got done a side job for a very well educated individual who has several degrees in a wide variety of subjects, and is very well known in her respective fields. While I was there, she asked me to take a look at her front door. She looked at me in dis-belief when I walked in five minutes later to tell her that she no longer needed to lift, while applying her entire weight to the front door in order to close it, as she's done for the last few years... All that I did was tighten the hinge screws. I left that day feeling a bit smarter.
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le GraiN
 
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Post » Fri Sep 16, 2011 3:28 pm

Liquid Nitrogen is much more practical.

Obviously not if he's having this much trouble finding it...
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Vickytoria Vasquez
 
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