Okay, I know this might sound really offtopic. I made a PCB a while ago and got some ferric chloride stains in my clothes. I've been trying literally everything, from lemon juice, salt, vinegar, coke, bleach, sodium bicarbonate... I think it's really difficult to remove, but not impossible. Any advice I can get to save the clothes? Thanks!
I kind of doubt the stains will ever come out completely. Why don't you dye them in FeCl and make a fashion statement?
Some UK companies sell FeCl stain removal crystals, which appear to just be Oxalic Acid.