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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Why n-alkanes can be found in organic solvent extract of rubber?
Sorry for the confusing title, I didn't know how to describe this better. So, if we douse rubber, say, a bicycle tire or a certain type of rubber glove, with organic solvent (n-heptane), we can find n-...
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Extraction Microrna From Humans Plasm
My question is: what is the best way to extract micro RNA (miRNA) from humans plasma? Whether trizol is suitable, or should I use commercial kits? Thanks
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Can aniline be made with the method described in Dr Stone?
In Dr Stone, the main character makes aniline by rinsing coal tar with HCl, then mixing in ethyl acetate. See the image below. Is a method like this possible? What is occurring here?
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Electrolytic refining of precious metals — why the anode rather than the cathode? [closed]
In electrolytic refining, metals like platinum and gold are deposited as anode mud.
Why aren't they deposited on the cathode since they have higher reduction potential?
user84141
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Separation of Al-Si alloys without electrolysis
Can pure (or roughly pure) $\ce{Al}$ be somehow thermally, chemically, or physically separated from the $\ce{Si}$ contained in an $\ce{Al-Si}$ alloy? How? Approximately what purity of Aluminum can be ...
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Primitive Technology - Extract Silica and Sulfur from ash
Given some plant ash containing silica and sulfur, we need to find a way to extract the silica and sulfur using only resources available to a primitive person stuck on an island, with access to a ...
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Primitive Technology - Production of NaOH
We need to produce NaOH with primitive Technology. This is Part 1 of my Gilligan's Island Challenge series (Part 2). You are stuck on an island with access to a beach, a forest, a river, a lake, and a ...
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Increasing concentration of acetylcholine via SPE
I am trying to increase the final yield of acetylcholine (ACh) in my biofluid samples. I need to get the yield high enough for high confidence annotation of ACh (currently all I can really say is that ...
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Why do we use coke instead of coal in order to reduce FeO as basic reaction in ironmaking process?
Why is coke used as a reducing agent to reduce FeO to produce iron instead of coal.I admit that coke is carbonaceous but what is it that compels us to use coke instead of the naturally available coal?
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The effect of lactose monohydrate on acid-base extraction of tolterodine tartrate
I am doing an organic chemistry project for school in the form of an acid-base extraction of tolterodine tartrate (Detrol) in ammonium hydroxide (or sodium hydroxide, haven't decided yet) and ...
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Is scopolamine same as scopolamine hydrobromide?
Is scopolamine extracted with methanol or acetone from Datura or Brugmansia scopolamine free base or scopolamine hydrobromide?
If you take a look at the Wikipedia page for hyoscine, the Synonyms part ...
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Procedure for determining the levels of Acrylamide from a cup of coffee
For experimental purposes, I want to determine the level of Acrylamide in cups of coffee. Is there a method that doesn't use spectrometric analysis to determine it as I do not have access to it in the ...
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Are glycosides more soluble in dichloromethane than in water?
I'm designing an experiment to extract the amygdalin from apricot leaves and kernels. I want to steam the kernels and leaves, grind them, add water and then filter it using a filter paper. Then ...
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How to remove sugar from juice
My son has autism and we noticed that blueberries make him feel much better. The problem is blueberries contain sugars which interfere with diet he has (low carbohydrate).
How do I filter out the ...
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Why is a weak base more able to deprotonate a strong acid than a weak acid?
Very basic question, but I'm rather confused.
Say I want to separate a carboxylic acid $(\ce{RCOOH},$ $\mathrm{p}K_\mathrm{a}~5)$ from a phenol $(\ce{ArOH},$ $\mathrm{p}K_\mathrm{a}~10)$ via acid-...
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