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Al and H2SO4
Hi there!
I'm just wondering why my nice lil equation isn't working in reality:
2Al+3H2SO4=>Al2(SO4)3+3H2 non-molar quantities are used
The Sulphuric acid is battery grade, so I'm guessing it must be contaminated, but isn't it usually just some Pb?
Even when I concentrated the acid, still nothing appeared to happen a d no effervence was noted.
I know the Al has an oxide coating, but it should still go to completion.even if
i do get a drop of water, it should still continue on with evolving H2.
Al2O3+3H2SO4=>2Al2(SO4)3+3H20
I'm just wondering why my nice lil equation isn't working in reality:
2Al+3H2SO4=>Al2(SO4)3+3H2 non-molar quantities are used
The Sulphuric acid is battery grade, so I'm guessing it must be contaminated, but isn't it usually just some Pb?
Even when I concentrated the acid, still nothing appeared to happen a d no effervence was noted.
I know the Al has an oxide coating, but it should still go to completion.even if
i do get a drop of water, it should still continue on with evolving H2.
Al2O3+3H2SO4=>2Al2(SO4)3+3H20
Goldenratio
Hi there!
I'm just wondering why my nice lil equation isn't working in reality:
2Al+3H2SO4=>Al2(SO4)3+3H2 non-molar quantities are used
The Sulphuric acid is battery grade, so I'm guessing it must be contaminated, but isn't it usually just some Pb?
Even when I concentrated the acid, still nothing appeared to happen a d no effervence was noted.
I know the Al has an oxide coating, but it should still go to completion.even if
i do get a drop of water, it should still continue on with evolving H2.
Al2O3+3H2SO4=>2Al2(SO4)3+3H20
I'm just wondering why my nice lil equation isn't working in reality:
2Al+3H2SO4=>Al2(SO4)3+3H2 non-molar quantities are used
The Sulphuric acid is battery grade, so I'm guessing it must be contaminated, but isn't it usually just some Pb?
Even when I concentrated the acid, still nothing appeared to happen a d no effervence was noted.
I know the Al has an oxide coating, but it should still go to completion.even if
i do get a drop of water, it should still continue on with evolving H2.
Al2O3+3H2SO4=>2Al2(SO4)3+3H20
How long did you wait? IIRC, This reaction takes a while to get started, but once it does, it goes fairly quickly. What form is your Al? Powdered?
Why are you using battery acid sourced H2SO4? Does your lab not have the pure concentrated stuff? Or are you doing this for "other" purposes, for which this experiment is quite often done? if so, then you should know that the experiment is quite hazardous.
Marcus
Make sure that you were using POLISHED aluminium ribbon(s).
As a reactive metal, Al always form a thin basic Aluminium Oxide layer. This oxide neutralises acid to form Al2(SO4)3 + H2O. So I mean for unpolished powdered Aluminium the content is actually Al2O3.
However, this reaction does occur! providing u have used appropriate reactants and apparatus.
As a reactive metal, Al always form a thin basic Aluminium Oxide layer. This oxide neutralises acid to form Al2(SO4)3 + H2O. So I mean for unpolished powdered Aluminium the content is actually Al2O3.
However, this reaction does occur! providing u have used appropriate reactants and apparatus.
Yes, I left it quite some time and also ensured the sulphuric was in excess. Al foil is being used.
The lab didn't have conc acid in stock.
Why is it very hazardous?
The lab didn't have conc acid in stock.
Why is it very hazardous?
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