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How to handle liquid nitrogen?


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There are three main hazards associated with liquid nitrogen and a few other liquified gases.

1. Inert gas asphyxiation. There is no warning, no sensation of suffocation and death can occur unexpectedly and relatively quickly. Gaseous nitrogen can displace oxygen in the room without being noticed.

2. Extreme cold. Precautions must be taken when handling it to avoid freezing injury.

3. It’s a liquified, refrigerated gas. It is only liquid because it is so cold. Sudden contact with even room temperature objects could, under certain conditions, result in “explosive” transition from liquid to gas.


Edited by Cynic
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