APPENDIX
GLOSSARY
Carbon Dioxide The chemical compound formed by combining one atom of
carbon with two atoms of oxygen
CO
2
The molecular formula for carbon dioxide
Critical Point The temperature and pressure above which a chemical
compound can only exist as a supercritical fluid - for Carbon
Dioxide: 87.9 ºF (31.1 ºC) and 1070.6 psig (73.8 bar)
Dew Point The temperature at which water dissolved in carbon dioxide
condenses
Dry Ice Solid carbon dioxide
Sublime To change from a solid to a vapor without becoming a liquid
Supercritical Fluid A chemical compound at temperature and pressure greater than
its critical point
Triple Point The conditions at which all three states (solid, liquid and vapor)
of some chemical compounds can exist at equilibrium. For
Carbon Dioxide the conditions are: -69.9 ºF (-56.6 ºC) and
60.4 psig (4.2 bar)
7.1
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