Liquid air

Liquid air is air that has been cooled to very low temperatures (cryogenic temperatures), so that it has condensed into a pale blue mobile liquid.[1] It is stored in specialized containers, such as vacuum flasks, to insulate it from room temperature. Liquid air can absorb heat rapidly and revert to its gaseous state. It is often used for condensing other substances into liquid and/or solidifying them, and as an industrial source of nitrogen, oxygen, argon, and other inert gases through a process called air separation (industrially referred to as air rectification.).

  1. ^ Babbage (Oct 15, 2012). "Difference Engine: End of the electric car?". The Economist. Retrieved Oct 21, 2012.

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