Carbon dioxide (12 C 16 O 2) Other names: Carbon oxide (CO2); Carbonic acid, gas; Carbonic anhydride; Dry ice; CO2; Anhydride carbonique; Carbonica; Kohlendioxyd; Kohlensaure; UN 1013; UN 1845; UN 2187; Cardice; Dricold; Drikold; Carbonic acid anhydride; Khladon 744; R 744 Permanent link for this species. It occurs naturally in Earth's atmosphere as a trace gas.The current concentration is about 0.04% (412 ppm) by volume, having risen from pre-industrial levels of 280 ppm. When CO 2 is solved in water, the mild carbonic acid, is formed.Cooled CO 2 in solid form is called dry ice.. Sensitivity analysis of solids solubility parameter in supercritical CO 2 was done. The state diagram of CO2 visualizes the various phases (solid, liquid, gas) depending on pressure and temperature. CO2 Property Tables: Saturation Properties - Temperature Table (-20°C - 5°C) Saturation Properties - Temperature Table (5°C - … Carbon dioxide (chemical formula CO 2) is an acidic colorless gas with a density about 53% higher than that of dry air. Sensitivity analysis method was used on parameters of supercritical CO 2 density. Carbon dioxide (CO 2) is the most widely used supercritical fluid.This is because CO 2 is cheap, chemically inert, non-toxic, non-flammable and readily available at high purities and at low costs. Calculate online thermodynamic and transport properties of carbon dioxide based on industrial formulation (formulated in Helmholtz energy) for advanced technical applications. As can be seen in figure 4, the density of the supercritical CO 2 increased with the increasing depth. Carbon dioxide phase diagram Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. The greater the depth, the smaller the increase. Carbon dioxide, CO 2, is a colourless and odorless gas. The range of the underground supercritical CO 2 density in the study area was 0.4 to 0.6 g cm-3. Although CO 2 is a greenhouse gas, if it is withdrawn from the environment, used in a process, and then returned to the environment, it does not contribute to the greenhouse effect. Highlights New correlation for predicting supercritical carbon dioxide density was proposed. New correlation for predicting solids solubility in supercritical CO 2 was proposed. 2.3. CO2, at 31,1°C and 73,8 bar, is in its supercritical state, in which there is no distinction between liquid and gaseous phases (as shown in the following picture). The effect of traces of ethanol in supercritical carbon dioxide on the mixture's thermodynamic properties is studied by molecular simulations and Taylor dispersion measurements. The recent interest to use supercritical CO. 2 (sCO. 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