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Liquid carbon dioxide is a type of liquid which is formed from highly compressed and cooled gaseous carbon dioxide. It does not form under atmospheric conditions. It only exists when the pressure is above 5.1 atm and the temperature is under 31.1 °C (88.0 °F) (temperature of critical point) and above −56.6 °C (−69.9 °F) (temperature of ...
Liquid carbon dioxide is a good solvent for many lipophilic organic compounds and is used to decaffeinate coffee. [18] Carbon dioxide has attracted attention in the pharmaceutical and other chemical processing industries as a less toxic alternative to more traditional solvents such as organochlorides .
Liquid carbon dioxide (CO 2), stored in compressed cylinders, is used in conjunction with theatrical fog machines to produce "low-lying" fog effects. When liquid CO 2 is used to chill theatrical fog, the result is a thick fog that stays within a few feet of the ground. As the fog warms, or is agitated, it rises and dissipates.
The table below gives thermodynamic data of liquid CO 2 in equilibrium with its vapor at various temperatures. Heat content data, heat of vaporization, and entropy values are relative to the liquid state at 0 °C temperature and 3483 kPa pressure. To convert heat values to joules per mole values, multiply by 44.095 g/mol.
Carbon dioxide cleaning (CO2 cleaning) comprises a family of methods for parts cleaning and sterilization, using carbon dioxide in its various phases. [1] Due to being non-destructive, non-abrasive, and residue-free, it is often preferred for use on delicate surfaces. [2][3][4]: 275 CO 2 cleaning has found application in the aerospace ...
Supercritical carbon dioxide. 2) is a fluid state of carbon dioxide where it is held at or above its critical temperature and critical pressure. Carbon dioxide usually behaves as a gas in air at standard temperature and pressure (STP), or as a solid called dry ice when cooled and/or pressurised sufficiently. If the temperature and pressure are ...
Liquid carbon dioxide can be stored at ambient temperatures, unlike Liquid air energy storage (LAES), which must keep liquid air cold at −192°C, though the CO 2 does need to be kept pressurised. Liquid CO 2 has a much higher energy density (66.7 kWh/m 3 ), than compressed air in typical to compressed-air energy storage (CAES) systems (2-6 ...
The researchers calculated that smectites on the red planet could hold up to 1.7 bar of carbon dioxide, which would be equivalent to around 80% of early Martian atmosphere.