why is liquid nitrogen used in cryopreservation?

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why is liquid nitrogen used in cryopreservation?

2007-03-12 05:54:26 · 2 answers · asked by aditi n 1 in Science & Mathematics ➔ Chemistry

2 answers

Because it is extremely cold, because it is unreactive (liquid oxygen, for comparison, is prone to explode in contact with a fuel), and most importantly, because it is cheap.

2007-03-12 06:04:47 · answer #1 · answered by Ian I 4 · 2⤊ 0⤋

...Liquid Nitrogen is extemely cold....-196°C at atmospheric pressure.
...A cryogenic substance is one that has a temperature BELOW -150°C.

...Nitrogen is plentiful in the atmosphere and can be separated from air by Compression, Super-cooling and Distillation.

2007-03-12 06:14:13 · answer #2 · answered by Norrie 7 · 0⤊ 0⤋