kclo4
National Hazard
Posts: 916
Registered: 11-12-2004
Location:
Member Is Offline
Mood: No Mood
|
|
Aluminum and copper sulfate something wired
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
Hazard to Others
Posts: 436
Registered: 12-3-2003
Location: US
Member Is Offline
Mood: Procrastinating
|
|
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
Hazard to Others
Posts: 255
Registered: 1-3-2004
Location: With probability 1, "somewhere" in this
Member Is Offline
Mood: No Mood
|
|
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.
Ignis ubique latet, naturam amplectitur omnem.
|
|
|
unionised
International Hazard
Posts: 5104
Registered: 1-11-2003
Location: UK
Member Is Offline
Mood: No Mood
|
|
Probably hydrogen.
2Al +6H2O --> 2Al(OH)3 + 3H2
|
|
|
kclo4
National Hazard
Posts: 916
Registered: 11-12-2004
Location:
Member Is Offline
Mood: No Mood
|
|
its not H2 it was Cl2 i couled smell it and it was yellow
|
|
|
Mumbles
Hazard to Others
Posts: 436
Registered: 12-3-2003
Location: US
Member Is Offline
Mood: Procrastinating
|
|
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
lab constructor
Posts: 5939
Registered: 1-11-2003
Location: USA
Member Is Offline
Mood: Chemistry: the subtle science.
|
|
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.
The single most important condition for a successful synthesis is good mixing - Nicodem
|
|
|
unionised
International Hazard
Posts: 5104
Registered: 1-11-2003
Location: UK
Member Is Offline
Mood: No Mood
|
|
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
National Hazard
Posts: 916
Registered: 11-12-2004
Location:
Member Is Offline
Mood: No Mood
|
|
Is it possible to add HCl to NaSO4 to make NaHSO4 and Cl?
|
|
|
neutrino
International Hazard
Posts: 1583
Registered: 20-8-2004
Location: USA
Member Is Offline
Mood: oscillating
|
|
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.
|
|
|
chloric1
International Hazard
Posts: 1070
Registered: 8-10-2003
Location: GroupVII of the periodic table
Member Is Offline
Mood: Stoichiometrically Balanced
|
|
Soluble
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
Fellow molecular manipulator
|
|
|
Mumbles
Hazard to Others
Posts: 436
Registered: 12-3-2003
Location: US
Member Is Offline
Mood: Procrastinating
|
|
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.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
