All Questions
Tagged with extraction inorganic-chemistry
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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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How to theoretically determine if a hydrate of a salt precipitates out of solution
In a solid-liquid extraction simulation process, there are multiple salts that precipitate in the solution. But how do I determine if these salts are hydrates or not? To give an example:
$$\ce{Ca3(PO4)...
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What chemical mechanisms or parameters altered during the usage of buffered extractant for leachability of a soil or sediment?
Toxicity characteristic leaching procedure (TCLP) is an extraction method to simulate a soil or sediment leaching. The method employed two extraction fluids - one is a buffered
solution of acetic acid ...
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How to remove graphite substrate of boron carbide coating?
I have a boron carbide coating (the thickness is either 90 microns or 220 microns) on a graphite substrate (the thickness is 0.5 inch - about 13 mm, the other dimensions are 2x2 inch$^2$ - about 5x5 ...
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Extraction of copper from chalcopyrite
During the extraction of copper from chalcopyrite ore, the ore ($\ce{Cu2S.Fe2S3}$) is heated to form $\ce{Cu2S}$ and $\ce{FeS}$. Then during smelting it reacts with $\ce{O2}$ to form $\ce{Cu2O}$.
Then ...
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Extracting other mineral from salt in evaporated seawater
I recently stumbled upon this news:
Seawater contains 47 minerals and metals. Starting with the most abundant and proceeding to the least abundant, these are chloride, with a concentration of $\pu{18 ...
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How to extract pure potassium carbonate from ash?
In our village, lots of ash is produced which is thrown off. I want to extract pure potassium carbonate from that ash. I am able to extract the potassium compound and a soluble compound by ...
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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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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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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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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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When recovering Copper from Copper Chloride via Aluminum, why can't we use Sodium instead to make Sodium Chloride?
About a week ago in my Middle School Science Class, we used an aluminum washer and some copper chloride, which we had gotten from creating circuit boards, in a closed system to recover the copper (if ...
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What is the link between hydrogen production and potassium oxide?
Is there an industrial process that produces hydrogen with potassium oxide as a catalyst?
Or is there a process for the production of potassium oxide that has hydrogen as a by-product?
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Neutralising sulfuric acid but not boric acid
I have another question here which refers to me asking how to separate boric acid from other compounds, and this is partially a follow-up.
Suppose I was to go down the route of making boric acid by ...
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