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Author: Subject: Copper(III)
GreenJames
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[*] posted on 14-3-2020 at 08:04
Copper(III)


I've been very interested in Copper(III) compounds lately. I already know of the persulfate/periodate method, however I was wondering if there are any other ways to isolate one of these compounds. These compounds are very interesting to me, and I would like to see more of the chemistry of these salts.
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Bedlasky
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[*] posted on 15-3-2020 at 02:13


Hydrated Cu2O3 can be prepared by oxidation of Cu(OH)2 with NaClO or K2S2O8.
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josh1037
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[*] posted on 15-3-2020 at 08:08


Copper 3+ compounds are notoriously difficult to work with, given their tendency to degrade. Copper(III) oxide still hasn't been isolated, and that's one of the most simple copper compounds. These compounds are better in theory and you would have to have an absurdly low temperature to prevent these compounds from degrading.
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12thealchemist
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[*] posted on 16-3-2020 at 11:25


I've succeeded in making KCuO2 by burning potassium with copper(II) oxide in an oxygen atmosphere, but it was far from pure and degraded over a period of a few hours due to impurities absorbing atmospheric moisture and accelerating decomposition.
Analysis was optical spectroscopy - a dull blue powder was formed, and it was impossible for it to be any hydrated copper(II) compound due to the conditions involved. Also, KCuO2 is dark blue.




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