Camroc37
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CuCO3+KNO3- does it make copper nitrate?
I make copper nitrate using Ammonium Nitrate and Copper Carbonate. Will the above method also work?
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gdflp
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No, it will not. Basic copper carbonate, Cu2(OH)<sub>2</sub>CO<sub>3</sub>, will not react with a
solution of potassium nitrate, the equilibrium is unfavorable. The only reason that the reaction with ammonium nitrate works is that a competing
reaction, namely the decomposition of ammonium carbonate, is largely irreversible, thus the equilibrium is shifted towards favoring copper nitrate.
In the future, ask questions like this in The Short Questions Thread.
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Bert
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Thread Moved
13-9-2015 at 18:32 |
PHILOU Zrealone
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NH4NO3 (NH4(+) in fact) is mildly acidic...
As such it favors the formation of gaseous volatile ammonia and H2CO3 (H2O + CO2)...
Many equilibrii at work...
Cu(OH)2 <==--> Cu(2+) + 2 OH(-)
CuCO3 <==--> Cu(2+) + CO3(2-)
NH4NO3 ---> NH4(+) + NO3(-)
NH4(+) + OH(-) <==--> NH3(g) + H2O
2 NH4(+) + CO3(2-) <--> 2 NH3(g) + H2O + CO2(g)
4 NH3 + Cu(2+) <--==> Cu(NH3)4(2+)
Cu(2+) + 2 NO3(-) <--> Cu(NO3)2
Cu(NH3)4(2+) + 2 NO3(-) <--> Cu(NH3)4(NO3)2
Cu(NH3)4(NO3)2 <==--> Cu(NO3)2 + 4 NH3(g)
PH Z (PHILOU Zrealone)
"Physic is all what never works; Chemistry is all what stinks and explodes!"-"Life that deadly disease, sexually transmitted."(W.Allen)
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