vampirexevipex
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Copper mixture
Hello People! i need help with the weird mixture i made  . I mixed copper acetate monohydrate with sodium bicarbonate. I want to know why did it turn dark blue, what's the name of the mixture, if it can produce crystals and some properties. So, can you give me a hand on
this?
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Mixell
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And then you took some of the substance and spew it all over your post?
I assume it was in a solution, so its copper carbonate, CuCO3.
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vampirexevipex
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Quote: Originally posted by Mixell  | And then you took some of the substance and spew it all over your post?
I assume it was in a solution, so its copper carbonate, CuCO3. |
ok, now, what happened to the other compounds? can the CuCO3 and the other compounds form crystals?
[Edited on 22-02-12 by vampirexevipex]
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Bot0nist
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NaOAc perhaps. This really belongs in beginnings. Write the reaction out on paper and show us what YOU think happened. Don't be lazy. Don't mix random
chems just "for the hell of it." That is not chemistry...
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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bfesser
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Cu(HCO<sub>3</sub> <sub>2</sub>, <a
href="http://en.wikipedia.org/wiki/Copper(II)_carbonate">CuCO<sub>3</sub></a>, and various hydrates form the precipitate. <a
href="http://en.wikipedia.org/wiki/Sodium_acetate">NaC<sub>2</sub>H<sub>3</sub>O<sub>2</sub></a> remains
in solution.
<a href="http://en.wikipedia.org/wiki/Copper_acetate">Cu(C<sub>2</sub>H<sub>3</sub>O<sub>2</sub><sub>2</sub></a> <em>(aq.)</em> + 2 <a
href="http://en.wikipedia.org/wiki/Sodium_bicarbonate">NaHCO<sub>3</sub></a> <em>(aq.)</em> →
Cu(HCO<sub>3</sub><sub>2</sub> + 2
NaC<sub>2</sub>H<sub>3</sub>O<sub>2</sub> <em>(aq.)</em>
Copper(II) bicarbonate decomposes to copper(II) carbonate, carbon dioxide, and water.
2 Cu(HCO<sub>3</sub><sub>2</sub> → 2
CuCO<sub>3</sub> + CO<sub>2</sub> + H<sub>2</sub>O
Please try the forum search function and <a href="http://lmgtfy.com/?q=copper+acetate+sodium+bicarbonate">Google</a> before starting a new
thread next time. I'm fairly certain this has been covered on the forum, and I <em>know</em> it's been covered elsewhere.
[edit/comment]
Bot0nist is correct, this likely belongs in <em>Beginnings</em>.
[Edited on 2/26/12 by bfesser]
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UnintentionalChaos
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Dark blue is a soluble copper (II) hydroxy-carbonato complex, I believe. I've had the same result precipitating copper sulfate with sodium
bicarbonate. It's unstable.
Department of Redundancy Department - Now with paperwork!
'In organic synthesis, we call decomposition products "crap", however this is not a IUPAC approved nomenclature.' -Nicodem
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bfesser
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On the subject of inorganic copper chemistry, <a
href="http://www.sciencemadness.org/talk/member.php?action=viewpro&member=woelen">woelen</a> is likely our most knowledgable. He's
compiled quite a list of Cu experiments <a href="http://woelen.homescience.net/science/chem/exps/index_metals.html">on his website</a>.
Like woelen, "<a
href="http://www.sciencemadness.org/talk/search.php?token=&srchtxt=copper&srchfield=subject&srchuname=woelen&f[]=all&srchfrom=0&am
p;filter_distinct=yes&searchsubmit=Search">I have something with the element copper</a>." I've long been interested in the complexes
formed between certain carboxylic acids and copper(II) ions in aqueous solution. I wrote up the preparation of one of these complexes, <a
href="http://www.sciencemadness.org/talk/viewthread.php?tid=9920">copper(II) acetoxybenzoate</a>.
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ScienceSquirrel
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Thread Moved
26-2-2012 at 19:06 |
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