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Supercritical fluid extraction is a process that uses supercritical fluids, such as carbon dioxide, to extract solutes from solid or liquid samples. The main principles include the use of a supercritical fluid as the solvent, which offers benefits such as tunable solvating power, high efficiency, and minimal residue in the extracted material. The process involves applying high pressure and temperature to the supercritical fluid to reach a state where it exhibits properties of both liquids and gases, making it highly effective for extraction purposes.
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How do you remove caffeine from a mixture?
One way to remove caffeine from a mixture is through a process called liquid-liquid extraction. In this process, the mixture is dissolved in a solvent, such as water or an organic solvent, and then another solvent is added that selectively extracts the caffeine. The two solvents are then separated, with the caffeine being isolated in the extracting solvent.
Is there such a thing as green dry cleaning?
Yes, there is such a thing as green dry cleaning. Green dry cleaning works by using super-critical CO2 instead of volatile organic solvents to clean clothing. The super-critical CO2 is in a phase of matter that is somewhere between a liquid and a gas, this allows the clothing to be effectively cleaned without using a more harmful organic solvent. Apparently so. There is a special cleaning process that uses liquid carbon dioxide to clean clothes in an eco-friendly way.
Are stars a solids liquid or gas?
yes__________________________________________________________________________Stars are made up of a super heated gas called plasma.
Is a gold penny chemical or physical?
It's chemical because you have to heat a liquid until it's super hot then you put the penny's in a cooler liquid and then it changes color.
Create an object that is both liquid and solid?
One example of a substance that can exist as both a liquid and a solid is honey. At room temperature, honey is a thick liquid, but if cooled below its freezing point, it can solidify into a semi-solid state.
