Removing Tile Cement

[NCArcher]

Is there an 'easy' way of removing old cement from the back of tiles to be re-used?
I had to remove tiles in the bathroom when i installed a new vanity (bigger than old unit) and i now have to put them back on.
I can ( I hope ) carefully grind the old cement off but i have a very limited supply of tiles, probably only one or two spare, and i can't afford to break any. I've tried getting new tiles in the same pattern but they went out of production about 20 yrs ago.
Is there anything that disolves or significantly softens tile adhesive?
The only other option i can see is to retile the whole bathroom including the shower recess and i do not want to do that.

Tony

[Bleedin Thumb]

How about soaking them in a Hydrochloric acid bath. If you have a spare broken bit it is worth trying it out to make sure the acid doesn't stain the tile.
I've never done this, so its a guess. In theory it should be Ok the acid should only attack the lime in the cement not you ceramic?? (I'm assuming) tile.
Give it a test first and use about 12 water to 1 acid. Read the instructions and be carefull about splashes and fumes.

[NCArcher]

BT,
They are ceramic, glazed tiles.
I have a few broken pieces. I'll give it a go.
Thanks.

Tony