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miscellaneous etchants
A handy list of known etchants for various materials one might need to etch in a materials lab. By Marvel NanoLab of University of California, Berkeley.
Link to PDF: Source, Archived copy (2023)
I wished I had one of these lists handy while in the lab back then.
PS: The typical etch (powdered Zn over HCL) for ITO also works for FTO
PS2: They have more lab manuals on their page