[LargeFormat] Removing black spots from prints

[Wilkes, Don MSER:EX]

>   For removing black spots from prints the best bleach is an
> Iodine bleach.

Thanks for the formula, Richard -- I may give this a shot, even if just to
put another trick in my bag for future reference.  A couple of questions,
though, as photochemistry is far from my strong suit:

- Is isopropyl alcohol the same as methyl? 
- Iodine in crystal form?
- Is thiocarbamide hard to come by? Would my local (large) pharmacy have it?




> The makers of SpotTone make a product called Spot Off which
> is evidently an Iodine bleach.

I haven't noticed this on the shelf, but will certainly have a look!

Cheers,
\donw