Zinc
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Cuprates
At http://webpages.charter.net/dawill/tmoranwms/Chem_Cu.html I have read that sodium cuprate can be made by dissolving CuO in concentrated NaOH
solution.
I searched but I didnt find anything about its properties.
Can sodium cuprate by cristalised by evaporating the solution, cooling the solution or perhaps adding ethanol?
Also can potassium cuprate be made by dissolving CuO in KOH?
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matei
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The synthesis and purification of sodium tetrahydroxocuprate (II) is described in Brauer, Handbook of Preparative Inorganic Chemistry (english
translation) on page 1684.
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12AX7
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I didn't try crystallizing it.
Likely, it would absorb CO2 from air and hydrolyze.
Ironically, I got the same color by electrolysing copper in sodium carbonate solution, rather than producing the expected copper carbonate I was
after.
Tim
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