Questions tagged [extraction]
For questions regarding the separation process consisting in the separation of a substance from a matrix. This tag can be used for generic extraction of elements from ore or more specific types of extraction such as: liquid-liquid extraction, and solid phase extraction.
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Choise of solvent for extraction
In the synthesis of (S)-Diphenyl(pyrrolidine-2yl)methanol, I need to extract the product using an organic solvent and water. Which organic solvent is the most suitable in this case?
Ethyl acetate: I ...
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Is the width of a Soxhlet Condenser Inherent to its Function?
Soxhlet extractors are often coupled to a specifically designed condenser with a very large lower joint.
Is this inherent to it's function as a condenser in the apparatus or only because the Soxhlet ...
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How to obtain optically pure mixture from racemic mixture [closed]
I recently studied stereo chemistry in school.All i know is that compound are optically active if they have no plane of symmetry and about the nomenclature we follow nomenclature.......
My questions
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Extract iodine from tincture? [duplicate]
What I am trying to do is extract elemental iodine from iodine tincture - that is 5% iodine solution in aqueous ethanol with $\ce{KI}$ as "helper additive", or whatever you'd call it. I don'...
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Why does 'softening' of lead oxidise only elements other than lead?
In a flowchart describing the steps to refine lead obtained after the reduction step, my book1 gives a short note on the process 'Softening of lead' where the crude lead is melted in the presence of ...
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Looking for advice regarding a larger scale soxhlet extraction
I have successfully completed a few soxhlet extractions at a much smaller scale using a soxhlet extractor with ~200ml capacity. With that, I was able to extract from ~100g of pre-powdered, sonicated ...
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Difference between calcination, roasting and pyrolysis
Hie everyone. I have been going through pyrometallurgical processes for recycling lithium-ion batteries and l have been coming across these terms; calcination, pyrolysis and roasting which l need ...
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How to determine the iron content of a screw?
In Analytical Chemistry, I was asked to determine the iron content of a screw.
I thought it could be solved in the following way:
Treat the screw with a solution of sulfuric acid or hydrochloric ...
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How can I measure the amount of quinine in a home-made tonic water?
I'm into mixology, and lately I've been looking into experimenting with home-made tonic water, by extracting quinine (quinine salts) from cinchona barks in an acidic aqueous solution. I've read a bit ...
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Use of Spiegeleisen in manufacture of steel
I recently read the following statements related to Manufacture of steel via Bessemer Process:
When no more $\ce{CO}$ is produced (i.e. blue flame disappears) a calculated amount of Spiegeleisen (...
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SPE recovery greater than 100%?
I am evaluating a paper Gan et. al. 2013 (https://doi.org/10.1016/j.chroma.2012.11.081) Table S4 (see image below) and I am focusing on evaluating the percent recovery for using different solid-phase ...
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Decarboxylation of THCA during CO2 Extraction of Cannabis
We have a strange problem. We are performing CO2 extraction on cannabis and we are seeing considerable decarboxylation of THCA to THC.
We have high quality temperature sensors at the heat exchangers, ...
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Need of refining aluminium and Hoope vs Hall–Héroult processes
Recently I was taught how aluminium is commercially extracted. The ore is first concentrated by leaching either by Bayer's process for red bauxite (impurity: $\ce{Fe2O3}$) or by Serpeck's process for ...
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How many times should I run a solvent extration experiment through?
For advanced higher chemistry project, I am extracting cinnamaldehyde from cinnamon via first steam distillation and then solvent extraction using hexane. I'll be adding sodium chloride to the water/...
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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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