metalresearcher
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Is compressed oxygen in a cylinder a supercritical fluid ?
A supercritical fluid is a substance over its critical temperature and its critical pressure. So water above 221 bar and 374 C is critical. So is CO2
on Venus (93 bar and 460 C) and even hydrocarbons on Jupiter and Saturn.
O2 has a critical point of -118 C and 50 bar which means that these cylinders have a supercritical content as these are 200+ bar and room temperature.
Even the single use small 90 bar cylinders are supercritical.
Is my assumption true ?
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Tsjerk
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Do they contain liquid? Isn't it just compressed?
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DraconicAcid
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You can't liquify a gas above its critical temperature.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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j_sum1
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If your data is correct, then yes. It is supercritical.
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unionised
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It is; indeed compressed air is often supercritical.
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Morgan
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Tidbit
"Instead of having to install protection for circuit breakers, the high pressure can be turned to our advantage. High pressure on the sea floor,
combined with the low critical temperature of nitrogen, means that nitrogen is supercritical under sea floor conditions!"
https://blog.sintef.com/sintefenergy/supercritical-nitrogen/
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Texium
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Thread Moved
30-11-2023 at 11:01 |
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