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Author: Subject: Cu(OH)2 what to do with it?
Romix
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[*] posted on 27-10-2021 at 19:24
Cu(OH)2 what to do with it?


Any ideas what to do with the copper hydroxide?

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Romix
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[*] posted on 27-10-2021 at 19:27


Some one recommended me making pure Cellulose, in ammonia complex which I can make from concentrated piss...
Any buyers for it? And how much they pay per KG?
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[*] posted on 27-10-2021 at 19:36


With Cu(OH)2 you can make pretty much any copper salt you want.
If you make the ammonia copper(II) complex you can dissolve cellulose. (Death to those cotton balls.) That is always a fun exercise.

pretty much depnds on what you want to do.

[edit]
I should read the existing replies before adding my own.
If you then add the dissolved cellulose to an acidic solution you so indeed get the cellulose to precipitate out again. This is how they make rayon. Whether it is more pure than the cotton wool or paper towels you started with is arguable. But it is certainly an interesting phenomenen. Produced in a home lab, the product is not terribly useful or valuable.

Actually, I cannot think of any compounds that are a small number of steps from Cu(OH)2 that have significant value.

[Edited on 28-10-2021 by j_sum1]
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Romix
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[*] posted on 27-10-2021 at 19:37


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Romix
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[*] posted on 27-10-2021 at 19:55


If the price is good I can make a truck load and deliver it around the Europe...
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[*] posted on 28-10-2021 at 17:31


Quote: Originally posted by j_sum1  
With Cu(OH)2 you can make pretty much any copper salt you want.
If you make the ammonia copper(II) complex you can dissolve cellulose. (Death to those cotton balls.) That is always a fun exercise.

pretty much depnds on what you want to do.

[edit]
I should read the existing replies before adding my own.
If you then add the dissolved cellulose to an acidic solution you so indeed get the cellulose to precipitate out again. This is how they make rayon. Whether it is more pure than the cotton wool or paper towels you started with is arguable. But it is certainly an interesting phenomenen. Produced in a home lab, the product is not terribly useful or valuable.

Actually, I cannot think of any compounds that are a small number of steps from Cu(OH)2 that have significant value.

[Edited on 28-10-2021 by j_sum1]


Yah, aside from pretty salts for sentimental value, which is fun and cool to do, there isn't much value I would say.

I do suggest making all sorts of copper salts, some nice colours, then get into nickel or whatever other pretty salts you want.




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[*] posted on 30-10-2021 at 18:19


One interesting phenomenon that I have seen is from NurdRage

You can make some CuCl2.
Add it to a conc solution of HCl.
Add a piece of copper.

The Cu2+ ions bind with the Cl- ions.
This has a dark green color.
Cu2+ + 4 Cl- -> CuCl42-

CuCl42- reacts with the solid copper.
This forms a colorless solution.

CuCl42- + Cu + 4 Cl- -> 2 CuCl43-

If oxygen is present, the Cu+ ions oxidize to Cu2+ and so the solution becomes dark green again.

4 CuCl43- + O2 + 4 H+ -> 2 H2O + 4 CuCl42-



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[*] posted on 31-10-2021 at 08:56


Quote: Originally posted by Romix  
If the price is good I can make a truck load and deliver it around the Europe...
Ah yes, hawking piss-soaked rayon goop throughout Europe. A wonderful idea! I’m sure people will be chomping at the bit to get their hands on that stuff…

[Edited on 10-31-2021 by Texium]




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[*] posted on 9-11-2021 at 10:48


make a truck load? how do you make truckloads of a chemical thats sensitive even in water to temperatures around 60*C by the truckload?



~25 drops = 1mL @dH2O viscocity - STP
Truth is ever growing - but without context theres barely any such.

https://en.wikipedia.org/wiki/Solubility_table
http://www.trimen.pl/witek/calculators/stezenia.html
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Romix
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[*] posted on 21-4-2022 at 09:48


Found a use for Cu(OH)2.
It can be dissolved in vinegar, and then copper could be recovered from it with tin.
That way I can remove tin from PCBs and chips before further processing.

[Edited on 21-4-2022 by Romix]

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[*] posted on 21-4-2022 at 09:51


Then wash it through the sieve in to 5 liter beaker. To remove copper powder, it'll settle.
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[*] posted on 21-4-2022 at 10:04


I kinda like the piss-soaked rayon goop proposal.

If you called it 'artisanal rayon' it would probably sell in Santa Cruz, CA. :D

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[Edited on 21-4-2022 by SWIM]




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