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mike H
Lv 5
mike H asked in Science & MathematicsChemistry · 1 decade ago

do copper tetraamine complexes absorb CO2 from the air to form Cu carbonates?

I have a copper tetraamine sulfate solution that appears to have absorbed CO2 from the air and formed the carbonate after a long storage period.

2 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    Most likely, as I have had similar experiences. Does your precipitate dissolve in additional ammonia and can copper carbonate be made to dissolve in ammonia? If the answers are no and no, you've got carbonate.

    It is also possible that ammonia was lost from solution and you regenerated the hydroxide. tetraamminecopper (II) is not an extremely stable complex and can degrade.

    Source(s): chemistry major
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