Homemade Liquid Nitrogen with the Joule-Thompson Effect

Re:Homemade Liquid Nitrogen with the Joule-Thompson Effect by fnord77 on Sunday August 18, 2019 @10:58PM (#20734546)

unless your goal is just to see if you can produce LN2:

> In most US cities, you can get LN2 for between $0.30 and $1 /liter. Just go to an Airgas or whatever with a dewar and they will fill it right up for you.

[ Parent | on HN ]

Re:Homemade Liquid Nitrogen with the Joule-Thompson Effect by londons_explore on Monday August 19, 2019 @03:49AM (#20735764)

In Europe, both dry ice and LN2 are harder to get. They aren't sold at Walmart, and only seem to be available if you know someone at a university or industry using them.

[ Parent | on HN ]

Re:Homemade Liquid Nitrogen with the Joule-Thompson Effect by yetihehe on Monday August 19, 2019 @05:46AM (#20736304)

Nah, you can buy dry ice commercially for about $1/kg in many places, it's used for shows, parties and food refrigeration. ln2 is only a little harder to obtain, but there are companies which will lease dewars and fill them with LN2. It's not like walmart level, but you can get them in bigger cities.

[ Parent | on HN ]