verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style

What is supercritical carbon dioxide?

When carbon dioxide is held at a temperature and pressure of 31.1 °C (88 °F) and 73.8 bar (1,070 pounds per square inch), it reaches its critical point, at which the distinction between its liquid and gaseous states disappears. In this state it can flow like a gas while maintaining densities closer to those of a liquid.