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Lion850
National Hazard
Posts: 514
Registered: 7-10-2019
Location: Australia
Member Is Offline
Mood: Great
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Hi old school can you post a photo of your final product? I am interested to see how the color compares to what I go as per my post a bit further up.
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AJKOER
Radically Dubious
Posts: 3026
Registered: 7-5-2011
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I just have an idea which I am now investigating. It is based on magnesium borate as a path to say tetraamine copper borate, which on mild heating
may successfully release NH3, leaving copper borate.
Paths to magnesium borate (see https://www.sciencedirect.com/science/article/abs/pii/S00223...), seemingly best: borax (Na2B4O7) + Epsom Salt (MgSO4) + freeze to produce a
Na2SO4 hydrate, leaving MgB4O7.
Idea is based generally on the action of NH4X on Cu metal in the presence of O2/H2O2 and a tiny bit of NaCl is an electrochemical path to
[Cu(NH3)x(H2O)y]Xz where x + y = 6 and z = 1 or 2 (see comments and references here http://www.sciencemadness.org/talk/viewthread.php?tid=90354#... ).
Just employing Cu/O2/NH3(aq) expected product is [Cu(NH3)x(H2O)y](OH)2 (or the corresponding cuprous).
Add the Magnesium borate to precipitate Mg(OH)2 leaving a corresponding copper aqua amine borate (which may have a commercial application as a
fungicide, see 'LABORATORY EVALUATION OF BORATE:AMINE:COPPER DERIVATIVES IN WOOD FOR FUNGAL DECAY PROTECTION' at https://www.fpl.fs.fed.us/documnts/pdf2011/fpl_2011_chen001....). Mild heating leaves Copper borate.
Advantages: All inexpensive and available reagents.
Before I proceed, any suggestions?
[Edited on 30-9-2020 by AJKOER]
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