En esta página puede obtener un análisis detallado de una palabra o frase, producido utilizando la mejor tecnología de inteligencia artificial hasta la fecha:
общая лексика
замораживание сухим льдом
[kɑ:bəndai'ɔksaid]
общая лексика
углекислота, углекислый газ
химия
двуокись углерода
углекислота
углекислый газ
медицина
диоксид углерода
нефтегазовая промышленность
диоксид углерода, углекислый газ
Supercritical carbon dioxide (sCO
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 both increased from STP to be at or above the critical point for carbon dioxide, it can adopt properties midway between a gas and a liquid. More specifically, it behaves as a supercritical fluid above its critical temperature (304.128 K, 30.9780 °C, 87.7604 °F) and critical pressure (7.3773 MPa, 72.808 atm, 1,070.0 psi, 73.773 bar), expanding to fill its container like a gas but with a density like that of a liquid.
Supercritical CO
2 is becoming an important commercial and industrial solvent due to its role in chemical extraction in addition to its relatively low toxicity and environmental impact. The relatively low temperature of the process and the stability of CO
2 also allows most compounds to be extracted with little damage or denaturing. In addition, the solubility of many extracted compounds in CO
2 varies with pressure, permitting selective extractions.