How to Create Liquid Nitrogen Using Dry Ice and Alcohol

[Emmanuel_Euler]

Hi Everyone
liquid nitrogen is very useful .

i want to know how to make liquid nitrogen?
i won't make a one. but i only want to know how to make it .

 

[Borek]

Have you asked uncle Google?

 

[DrClaude]

That's easy. Just take solid nitrogen and let it melt

 

[Emmanuel_Euler]

That's easy. Just take solid nitrogen and let it melt

yes

 

[Emmanuel_Euler]

it is very simple question friend ,just visit this website, You can make your own homemade liquid nitrogen... http://chemistry.about.com/od/advancedscienceprojects/a/Homemade-Liquid-Nitrogen.htm

Friend this did not helped me because( It's not really liquid nitrogen)
i want to know how to make (real) liquid nitrogen

 

[DrDu]

Have a look here, although it is in German:
http://www.rapp-instruments.de/Hotcold/Kryo/main.htm
Rapp-instruments is my absolute favourite page about advanced home-made physical apparatus.

 

[Emmanuel_Euler]

that is a useful website.
thanks for help.
but there is only one problem?
I do not understand German.
but it is not a big problem i can use google translate

 

[jtbell]

how to make liquid nitrogen?

Follow the various links in the Wikipedia article about liquid nitrogen:

http://en.wikipedia.org/wiki/Liquid_nitrogen

 

[Emmanuel_Euler]

Follow the various links in the Wikipedia article about liquid nitrogen:

http://en.wikipedia.org/wiki/Liquid_nitrogen

good article about liquid nitrogen!
i will read it soon.

 

[certainly]

Have a look here, although it is in German:
http://www.rapp-instruments.de/Hotcold/Kryo/main.htm
Rapp-instruments is my absolute favourite page about advanced home-made physical apparatus.

Dang!
Looks like the amazing DrDu
Pulled out another gem from his zoo
Of websites that remind me of a cuckoo
And teach you how to do science kung fu.....

 

[certainly]

Have a look here, although it is in German:
http://www.rapp-instruments.de/Hotcold/Kryo/main.htm
Rapp-instruments is my absolute favourite page about advanced home-made physical apparatus.

Seriously though....how did you run into that site, if I may ask ?
I've been searching about these things for some time now, I've never seen an amateur build something like a GM cryo-cooler, and pulsetube refrigerator. That guy's got something to be proud of. I've seen siemens cycle, Hampson-Linde cycle and stirling coolers, but nothing beyond that. I could give you links to just about all sorts of attempts on youtube, blogspots, personal websites, forums...and yet never saw a hint or reference to that german site. It's like Batman says "not so much as a green hair" about finding the joker.....
Do you have anything else "exquisite" up your sleeve?

 

[DrDu]

I don't know. Maybe it helps being German? :-)

 

[certainly]

I don't know. Maybe it helps being German? :-)

What about the other question? Do you know of something else interesting related to the topic? Maybe you know of an attempt to liquefy helium ?

 

[msajaa]

There are two ways to do this.

1. Pour the alcohol into a plastic container and nest this container inside a bucket of dry ice.
2. Alternatively, you can pour the alcohol directly over the dry ice. This is easier, but you won't have control over the temperature of the dry ice, so it's possible your alcohol will freeze.

 

[certainly]

There are two ways to do this.

1. Pour the alcohol into a plastic container and nest this container inside a bucket of dry ice.
2. Alternatively, you can pour the alcohol directly over the dry ice. This is easier, but you won't have control over the temperature of the dry ice, so it's possible your alcohol will freeze.

This is a common misconception. What you described is called poor man's liquid nitrogen, not actual liquid nitrogen.
And you would be well advised not to try demonstrations of Leidenfrost effect with that, since you'll end up losing whatever body part you tried it on.
[p.s. I really don't know who coined that term, it's hardly appropriate anyway.
Poor man's liquid nitrogen has little in common with actual liquid nitrogen, besides freezing flowers :)]