can one buy liquid nitrogen in small quantities?

Question

Dermatologists use liquid nitrogen to freeze skin problems (cancers) and charge an arm and a leg to do it. They store it in a thermos. Why not DIY.
( ps I don't need a lecture on the dangers, save that for your dermatologist.)

if it is -273 degrees, how do dermatologists and GPs store it?

Answer 1

You can buy it with quantity as small as 10L.

However, you have to buy the container and that is where the expense goes. The container suitable for liquid Nitrogen must by stainless steel inside to stand the cold of the liquid and it must be vacuum insulated to keep the liquid not all change into gas. Then the container must have a license to say that they are safety enough to use. You can check out the container at suppliers for cryogenics equipment such as Taylor Wharton, Cryoquip, Cryolor etc.

Once you have the container, you can contact your local industrial gas supplier and they will sell it to you, price of liquid something like US$2.00/L

Answer 2

No you couldn't because the temperature of liquid nitrogen is something like minus 273 Centigrade.

Answer 3

readily available on Pluto
other than that sorry
try your local university

Answer 4

I doubt it is available to general public.