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Author: Subject: Is this CuCl2?
thalium
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[*] posted on 1-1-2005 at 03:47
Is this CuCl2?


Is the greenish thing CuCl2? This is the anode used in the electrolysis of a concentrated NaCl solution. The wire is made of Cu

[Edited on 1-1-2005 by thalium]




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thalium
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[*] posted on 1-1-2005 at 03:50


picture...

anode1.jpg - 40kB




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runlabrun
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[*] posted on 1-1-2005 at 06:13


The specks on the electrode near the wire connection?

What did you do exactly? then we may be able to help you better.

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thalium
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[*] posted on 1-1-2005 at 08:30


I made the electrolysis of a concentrated NaCl solution. Cl was given off. The wire is of copper. I'm asking about the greenish part on the wire



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hodges
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[*] posted on 1-1-2005 at 10:13


More likely copper hydroxide, unless you separated the anode and cathode with some type of membrane. Copper ions are produced at the anode, but these react with NaOH produced at the cathode unless the electrodes are separated by something that does not allow the two to mix. I couldn't really tell from the picture though.
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[*] posted on 1-1-2005 at 14:13


Was the copper part submerged in the water? It could CuCl2 if you used a slt bridge.



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thalium
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[*] posted on 2-1-2005 at 01:20


No I didn't use a salt bridge and yes it was submerged in the water



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[*] posted on 3-1-2005 at 18:43


ITs Copper hydroxide



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[*] posted on 4-1-2005 at 00:40


thanks...I've been thinking about that too after hodges' post



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