All Questions
Tagged with extraction physical-chemistry
8
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How does a conc. electrolyte solution extract water from a organic phase like diethyl ether or ethyl acetate?
In organic chemistry, often, during the last steps of a workup we use concentrated brine solution (NaCl) to "extract" the water from the organic layer, especially when we have an organic ...
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In Na extraction, is Ca2+ of CaCl2 reduced in addition to Na+ of NaCl in electrolysis
In Na extraction from $\ce{NaCl}$, $\ce{CaCl2}$ is added in electrolysis to lower the melting point of the mixture to about $\pu{750 ^\circ C}$. But doesn't $\ce{Ca^2+}$ cation compete with the $\ce{...
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Under what circumstances that Liquid-Liquid extraction would be good to use? [closed]
Under what circumstances that LLE would be useful ?
Are the 2 top reasons -
1. Difference between the boiling points of the components are very low or similar.
2. For Temperature sensitive compounds ...
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How to without calculations understand the liquid-liquid extraction efficiency?
I'm asking myself this question for a very long time and I haven't found a simple an good explanation yet for the fact that it's better (if you want to clean them) to wash your hands two times with ...
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Increasing partition coefficient in an extraction
My friend had this homework question about supposing you had a slightly polar organic compound in an ether/water extraction with a partition coefficient in favor of ether. The question was:
What ...
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How to calculate the concentration of a monoprotic organic acid that was extracted into an ethyl ether layer?
Compound A is a monoprotic organic acid. If $\pu{25.0 mL}$ of a $\pu{0.456 M}$ solution of A in water was extracted with $\pu{25.0 mL}$ of ethyl ether and it was determined experimentally that $\pu{5....
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What is the known cheapest chemical solution to extract CO2 from air on industrial scale?
As far as I know, the cheapest non-chemical solution is: grow grass, and burn it. The resulting $\ce{CO2}$ is from the air. But I am interested on chemical industrial solutions now.
As far as I know, ...
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Chemical reactions in SFE?
What are the chemical reactions and/or chemical processes that take place during SFE(supercritical fluid extraction)? Namely supercritical $\ce{CO2}$.
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