
Euter's blue
#21
Posted 26 December 2007 - 05:15 PM
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#22
Posted 10 January 2008 - 07:56 PM
Here is the vid:
I am surprised how easy it was to make copper though, I was using really impure copper sulfate from fungicide. It was so impure infact it was green not blue. I just dissolved as much copper sulfate as possible in about 200 mls water added 10-15 mls 98% sulfuric acid and slowly added zinc. Then I waited about 1 hour until it finished bubbling and added water and decanted several times then I filtered it and put it in the oven until it was dry. It worked like a charm.
I will do the synth again with pics as soon as I get 99% copper sulfate then maybe I will start a synthesis thread in the chemistry section...
If at first you don't succeed, skydiving is not for you.
#23
Posted 13 January 2008 - 08:30 PM
Why did you add the acid Crazyboy? Catalyst?
Can some one write out the equation that shows how NaCl acts as a catalyst with CuSO4 and Al? Im not sure how catalyst work in the equation world. Does this looks right?
CuSO4 + NaCl --> Na2SO4 + CuCl2
CuCl2 + Al --> Cu + AlCl3
Na2SO4 + AlCl3 --> Al2(SO4)3 + NaCl
Its a random stab at what I think should happen. Looks right to me.
#24
Posted 13 January 2008 - 09:03 PM
The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.
#25
Posted 13 January 2008 - 10:15 PM
Where did you hear it acted as a catalyst?
Which reference are you talking bout to H2S04 or NaCl as a catalyst?
If at first you don't succeed, skydiving is not for you.
#26
Posted 14 January 2008 - 12:14 AM
I do wonder about the acid too though. Yes, it would remove any excess zinc, but you'd just be using up good reagent adding it at the beginning, as noticable by the bubbling. The actual reaction taking place produces no gas. It seems like an awefully lot if you're using it to "activate" the zinc surface to make it react faster. The pH is WELL below 1.
The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.
#27
Posted 14 January 2008 - 05:28 PM

If at first you don't succeed, skydiving is not for you.
#28
Posted 15 January 2008 - 12:55 PM
My chem teacher said the NaCl was a catalyst.
OH and I fixed my chemical misnamings.
#29
Posted 15 January 2008 - 02:32 PM
Zn + CuSO4 ---> ZnSO4 + Cu
Acid will only eat away the Zn, and NaCl I have no idea what the reasoning behind it is. The only possible explanation I can see for acid would be to remove the oxide coating on the outside of the Zn, and maybe keep it from getting passivated.
The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.
#30
Posted 23 January 2008 - 11:52 AM
#31
Posted 08 September 2010 - 07:01 AM
Never forget the people who asked
you to give up, so that you can
remember to call them to your success
party and make them eat up their own
words..............
#32
Posted 21 June 2015 - 12:07 AM
i have no chlorate or perchlorate, so i try to make a new blue with pvc powder cuo. i mix pvc and cuo togather and pasting it on a paper with nc lacquer (wood clear lacquer). dry and test open air have a nice blue,you can test it.
Edited by debubisu, 21 June 2015 - 04:19 AM.
#33
Posted 01 September 2015 - 09:17 PM
Wouldnt purchased copper powder of a high purity and about -320 mesh be suitable?
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