![]() ![]() supercritical fluidAny substance at a temperature and pressure above its critical point, where distinct liquid and gas phases do not exist.critical pressureThe pressure beyond which no phase boundaries exist for a given substance.All supercritical fluids are completely miscible with each other, so for a mixture a single phase can be guaranteed, if the critical point of the mixture is exceeded.A supercritical fluid can effuse through solids like a gas and dissolve materials like a liquid.Supercritical fluids have properties between those of a gas and a liquid.
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