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俚语 supercritical fluid
释义

supercritical fluid

A supercritical fluid is any substance at a temperature and pressure above its critical point. It can seep through solids like a gas, and dissolve materials like a liquid. plus, close to the critical point, small changes in pressure or temperature result in large changes in density, allowing many properties of a supercritical fluid to be negligable. Supercritical fluids are used as a substitute for organic solvents in a range of industrial and laboratory processes.
Carbon dioxide is the most commonly used supercritical fluid. they are used for decaffeination. It is a gas at standard temperature and pressure.
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更新时间:2024/11/10 23:20:15