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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.
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.
What is a good alternative to hexane?
Super critical carbon dioxide is my favorite but one can use ethanol propane and enzymatic aqueous extractions as well as mechanical press extraction.
Why super conductor is not used?
b'coz super conductivity is achieved only when the material is cooled below a critical temperature. if it cooled above the critical temp. than the material ceases to be a super conductor. to maintain it conductivity helium and liquid nitrogen which is not easy 2 be used that is why super conductor can't be used for commercial purposes in our day to day life
Is jam a solid?
I would say that jam should be considered in a state similar to a fluid at super critical conditions -where the critical fluid is showing both gas and liquid properties. What I'm saying is that it is neither a solid or liquid but shows both properties - in a sense jam doesn't know what it wants to be! The simple response would be yes it is a, very very very viscous, liquid. Thanks, Jamie. I would say that jam should be considered in a state similar to a fluid at super critical conditions -where the critical fluid is showing both gas and liquid properties. What I'm saying is that it is neither a solid or liquid but shows both properties - in a sense jam doesn't know what it wants to be! The simple response would be yes it is a, very very very viscous, liquid. Thanks, Jamie.
What are critical and super critical boilers?
critical boiler operating steam parameter 221.12bar and 375 centigrate . you can rise in pressure and temperatureabove the critical point. that is called supercritical boiler.
Which friend has a mother who is super critical of them?
The TV show? Monica
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.
How gas become a liquid?
When you put gas in a super freezing place, it becomes liquid.
Why there can be no liquid water on the surface of Mars?
It is super cold.
How does a solid change to a liquid?
super awesome-sauce
Is there a word for the meaning a liquid below freezing point without solidification?
super-cooled liquid
Why glass is called a super cooled liquid?
The definition of glass is a super cooled liquid. Any liquid that is super cooled takes on the properties of glass. Glass as you think of it is just super cooled silica. What happens is that it is cooled so quickly that it doesn't actually undergo a phase change back to a solid. In reality glass is just an incredibly slow moving liquid.
