kclo4 - 4-2-2005 at 18:48
I was making some powdered copper from copper chloride and aluminum foil as I added the al it started to bubble cl off witch doesn’t make since so
how could it be if any thing it would be hcl however there was sodium sulfate in so may be the hcl in the solution made sodium bisulafate and cl
Mumbles - 4-2-2005 at 22:41
Aluminum Chloride hydrolyses to HCl and Al(OH)3 by the equation:
AlCl3 + 3 H2O ---> Al(OH)3 + 3 HCl
This could be a source. This reaction proceeds pretty slow however. The sodium sulfate could very well have something to do with it though. I
can't really think up an equation, but I suppose there is something out there.
darkflame89 - 5-2-2005 at 01:08
Indeed i noticed the strange reaction as well. There were bubbles of gas evolved when i placed aluminium foil into copper(II) sulphate.
But i did not test the gas, and so could not verify the gas's identity at the momoent of time.
unionised - 5-2-2005 at 03:13
Probably hydrogen.
2Al +6H2O --> 2Al(OH)3 + 3H2
kclo4 - 5-2-2005 at 08:56
its not H2 it was Cl2 i couled smell it and it was yellow
Mumbles - 5-2-2005 at 15:30
I need some clarification. Did you use Copper Chloride, or Copper Sulfate? The title says one thing, but your post says another. I assume you meant
Copper Chloride, as otherwise there would be no possible way for chlorine.
Magpie - 5-2-2005 at 15:42
Check the pH of your copper salt solution. I would suspect it is acidic (salt of strong acid and weak base). If it is acidic then H2 would be a good
guess.
unionised - 6-2-2005 at 06:35
Production of chlorine in the presence of as strong a reducing agent as aluminium would be remarkable.
If the solution gets hot enough then HCl from AlCl3 +H2O is possible.
kclo4 - 6-2-2005 at 09:52
Is it possible to add HCl to NaSO4 to make NaHSO4 and Cl?
neutrino - 6-2-2005 at 10:38
No. If anything, this would happen:
Na<sub>2</sub>SO<sub>4</sub> + HCl <--> NaHSO<sub>4</sub> + NaCl
To liberate chlorine, you need a strong oxidizer in a basic environment.
Soluble
chloric1 - 6-2-2005 at 14:31
Chlorine is ALOT more soluble in basic solutions than in neutral or acidic. The gas is more likely hydrogen and this is evolve from the protinated
chloride ions in solution. Copper Chloride is quite acidic and makes a good dipping sauce.
Errr... I mean it hydrolisizes in water to form small amounts of
HCL
Mumbles - 7-2-2005 at 14:06
I think of anything you have some gas released that has some, or is entirely HCl. HCl and Chlorine to smell rather similar. One is more burning, and
one is more clean smelling I suppose you could describe it. In small doses it is sometimes hard to tell with the chlorine forming HCl with moisture
in your nose.