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The product in solvent extraction should be volatile because this property allows for easier separation from the solvent. When the product is volatile, it can be easily evaporated off from the solvent, leaving behind a purified product. This simplifies the process of isolating and collecting the desired compound.

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What are the three properties that a compound must possess in order for it to function well as an extraction solvent?

- the solvent must be miscible with the organic solute and not miscible with water- also any chemical reaction is permitted- higher yield of extraction- easy and complete recovery of the solvent


How can oils be isolated in water?

Oils can be isolated in water using techniques such as solvent extraction or centrifugation. Solvent extraction involves adding a solvent to the mixture of oil and water to separate the oil from water. Centrifugation involves spinning the mixture at high speeds to separate the oil, which is less dense, from the water.


What are the adavantages of using ether as an extraction solvent?

The major disadvantage of using ether as an extracting solvent is that it is very flammable. It also oxidizes into an explosive in some cases, is an anesthetic, and is very vapor dense (meaning it will fall to the floor and move around there).


Why should solvent never touch end of TLC plate?

Solvent should never touch the end of a TLC plate because it can cause the sample spots to dissolve or run off the plate, leading to poor separation and inaccurate results. If the solvent reaches the edge, it can also disrupt the capillary action necessary for the effective movement of the solvent front. Maintaining a proper solvent level ensures optimal chromatography and clearer visualization of the separated compounds.


What hazards should you be aware of when evaporating a solvent from a solution?

one may inhale the harmful particles of that solution

Related Questions

Why repeated extraction is better than solvent extraction?

Repeated extraction allows for greater efficiency in extracting desired components from a given sample due to the cumulative effect of multiple extraction cycles. This method ensures that more of the target compounds are effectively removed, leading to higher overall extraction yields compared to a single solvent extraction. Additionally, repeated extraction can help to overcome limitations such as incomplete extraction or low solubility that may be encountered with a single extraction.


Why ether is use as an extraction solvent?

Ether is used as an extraction solvent because it is a non-polar solvent that is efficient at extracting non-polar compounds such as fats, oils, and some alkaloids. It also has a low boiling point, making it easy to evaporate and recover the extracted compounds. However, ether is highly volatile and flammable, so safety precautions should be taken when using it.


What are the three properties that a compound must possess in order for it to function well as an extraction solvent?

- the solvent must be miscible with the organic solute and not miscible with water- also any chemical reaction is permitted- higher yield of extraction- easy and complete recovery of the solvent


Volatile liquid used chiefly as a solvent?

One example of a volatile liquid commonly used as a solvent is acetone. It evaporates quickly at room temperature, making it useful for dissolving other substances and cleaning. However, it is also highly flammable and should be handled with care.


How can oils be isolated in water?

Oils can be isolated in water using techniques such as solvent extraction or centrifugation. Solvent extraction involves adding a solvent to the mixture of oil and water to separate the oil from water. Centrifugation involves spinning the mixture at high speeds to separate the oil, which is less dense, from the water.


Is it better to do a series of small volume extractions or one large one in solvent extractions?

It's normally better to do a series of small ones, 2 or 3 should be plenty. The reason is that if each time you get for example 95% extraction, you stand a better chance of retaining more product from a multiple extraction.


What volume of an organic solvent should be used to effect a 90 percent separation in one extraction when only 2.7gm of a certain organic compound dissolves in 100 ml of water?

To calculate the required volume of the organic solvent for a 90 percent separation in one extraction, you need to first find out how much of the organic compound will stay in water after extraction. Since 10% of the compound will remain in water after the extraction (due to 90% separation), the mass of the compound that will remain in water is 0.1 * 2.7g = 0.27g. If 2.7g of the compound dissolves in 100 ml of water, then 0.27g will dissolve in 100/10 = 10 ml of water. Therefore, the remaining 90% of the compound (2.43g) needs to dissolve in the organic solvent, so we consider a partition coefficient to find the volume of the organic solvent needed.


Why should the recrystallization solvent have a fairly low boiling point?

the more solvent you use the more of the poorly soluable compound (wich you are trying to crystallise) will be lost when you cool down your solvent. because the soluability at the lower temperature is still not 0 g/l.


What are the adavantages of using ether as an extraction solvent?

The major disadvantage of using ether as an extracting solvent is that it is very flammable. It also oxidizes into an explosive in some cases, is an anesthetic, and is very vapor dense (meaning it will fall to the floor and move around there).


Chloroform in DNA extraction?

Chloroform is used in DNA extraction to separate the DNA-containing aqueous phase from proteins, cell debris, and other contaminants. It acts as an organic solvent to partition the DNA into the aqueous phase, enabling its isolation. However, chloroform is toxic and can be hazardous, so proper safety precautions should be followed when handling it.


What are the properties of a perfect fixative?

it should be stable and should be volatile in nature.


Why should the jar used to develop TLC plates be covered?

Covering the TLC plate jar helps prevent contamination from dust and other particles in the air, which could interfere with the separation process. It also helps protect the developing solvent from evaporating too quickly, ensuring accuracy in the results.