Thread: Where do you get liquid nitrogen?!?

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I want to do this!!!

YouTube - Liquid Nitrogen on a swimming pool

So where do you find liquid nitrogen?

A refrigerator or Fire extinguisher company; but, that stuff is EXSTREMLY DANGEROUS if not handled with respect.
Note the guys are not wearing shoes and or gloves

Didn't Marty McFly get it from the Lybians?

i thought it was doc and it was plutonium

You can get it from chemical/gas companies. we have a local company called simply "Dry ice and gases", how original! Try looking up local dry ice sources in your phone book and they should also carry liquid nitrogen. But be VERY careful! Actually, you could probably get a similar effect with a couple pounds of dry ice, which isn't *quite* as dangerous.

i would have to agree with the danger side of using it spill some of that on your hand and not only will it be brittle like you see in science demos but it would also stop blood flow, kill the nerves, and give you instant frost bite. i think there are safer ways to get an effect like that. also while on on the topic a small side note anyone/everyone who is thinking of or has used medium to large quantities of dry ice inside their house, this is very very dangerous and can cause co2 suffocation and at the very least would make you sick and could result in brain damage or death.

sorry to kill the fun, now lets start on how we can get that effect

I would say about a 3lb block of dry ice will do the same ,maybe even last a little longer.I also think the guy in the video isnt very smart cause if he would have tripped,slipped or dropped that pan he would be in REAL bad shape right now.

Dry ice is perfectly safe to have in the house. It's carbon MON-oxide that is extremely dangerous. Carbon DI-oxide is what we breathe out. The amount of CO2 in 5 lbs dry ice that is given off as it melts slowly is the equivalent of having one extra person in the house. If that will cause you to suffocate, you should probably do something before anyone visits. Seriously, what are you sealing your windows with??? LOL
Dry ice will however give you a nasty "burn" if you touch it.

Sorry, I didn't mean to sound quite as catty as I did when I re-read my post. I'm not trying to poo-poo the fact that dry ice can be dangerous and needs to be handled carefully, it's just VERY unlikely that it could cause any sort of breathing problems when kept in a regular house.
HOWEVER, if you were storing it in your CAR, that would be INCREDIBLY dangerous and could lead to asphixiation. That is a very small, very confined area wihtout adequate ventilation. In a house or a yard, there is plenty of air circulation and it will be fine. If you're at all worried, keep a plant or two beside it.

i agree when it melts slowly, when i wrote it i was thinking of a video i saw on here a long while ago where the person used alot of dry ice pellets dumped into hot water all at once to get a huge amount of fog right on their guests. now that think about it wasn't there a CSI where they were killed in a dorm room by a large amount of co2 coming in from a hole in the wall