Does HCl (g) dissolve in dilute H2SO4?

[ercdndrs]

Looking for a simple and straightforward answer to a question of the same type

 

I'm trying to make hydrochloric acid from NaCl and H2SO4. When I added them together (acid was ~94% conc.) the result was hot, foamy acid everywhere and hydrochloric acid fumes filling the room.

 

I'd like to keep my HCl dissolved so I can practically distill it. Does this happen or does sulphuric acid force the HCl out of solution?

[Mr Skeptic]

You could try doing it in an icebath, with slow addition and stirring, and less concentrated sulfuric acid.

[dttom]

Your reaction is actually an equilibrium shift, so you have concentrated sulfuric acid, chloride binds with proton and form HCl, as the H3O+ concentration is high equilirium position favors HCl side so HCl gas comes out. If you pump the gas to a dilute solution, position would be less intended to the HCl side so more will be dissolved.

[John Cuthber]

The simple answer is to dilute the H2SO4 first.

Add the NaCl and then distil the HCl.

I take it that you know that messing with conc H2SO4 is a bit on the risky side.

Boiling acid isn't nice either.

[ercdndrs]

Alright, thanks for the answers. I tried it out; what I saw was tiny bubbles of HCl forming, then rapidly being absorbed into solution. Also, my H2SO4 is buffered (drain cleaner >:/ ), so it is not all that nasty as it reacts quite slowly