how do you contain liquid nitrogen?

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how do you contain liquid nitrogen?

without having to freeze the container it is in.

2007-08-26 11:11:12 · 3 answers · asked by lyzz62 1 in Science & Mathematics ➔ Chemistry

3 answers

Look up "Dewar Flask" or "Dewar Vessel".

2007-08-26 11:34:02 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋

Liquid Nitrogen can be contained in a Double walled, Vacuum type vessel called a 'Dewar Flask' in which it is maintained at atmospheric pressure.
Some boil-off of the liquid occurs and is vented to atmosphere. Due to the thermal Insulation of the flask, boil-off is not excessive and is desirable in order to maintain the liquid at its boiling point of -194Â°C due to the partial vaporisation.

2007-08-26 13:43:08 · answer #2 · answered by Norrie 7 · 0⤊ 0⤋

you store it in a dewar flask.

2007-08-26 15:52:51 · answer #3 · answered by Dr. Eddie 6 · 0⤊ 0⤋