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Questions and Answers
At what temperature is carbon dioxide (CO2) typically maintained for supercritical fluid extraction (SFE)?
At what temperature is carbon dioxide (CO2) typically maintained for supercritical fluid extraction (SFE)?
- Above 31°C (88°F) (correct)
- Exactly 31°C (88°F)
- It varies depending on the substance being extracted.
- Below 31°C (88°F)
What is the critical pressure of carbon dioxide (CO2) for supercritical fluid extraction (SFE)?
What is the critical pressure of carbon dioxide (CO2) for supercritical fluid extraction (SFE)?
- 88 bar (1,276 psi)
- 31°C (88°F)
- It varies depending on the substance being extracted.
- 73.8 bar (1,070 psi) (correct)
What are the properties of a supercritical fluid?
What are the properties of a supercritical fluid?
- Liquid-like properties only
- Gas-like properties only
- Neither gas-like nor liquid-like properties
- Both gas-like and liquid-like properties (correct)
Which of the following parameters must be precisely controlled in supercritical fluid extraction (SFE)?
Which of the following parameters must be precisely controlled in supercritical fluid extraction (SFE)?
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