Any help? Stem seems to be stuck - Seized quill stems

You're taking pretty high concentrations to dissolve a quill.
Don't drop it on the floor or anywhere.
Try taking it to your LBS, they'll be able to handle it without acid.
Pretty sure there are other ways, tried unscrewing the bolt nearly all the way an then wacking it with a hammer?

Already taken it to one shop and they couldn't get it out. I've got the bolt out and the wedge has dropped. Its stuck because the ali has reacted with the steel so i need to find some way to break that bond. I'll try the coke then the heating and oiling and update.