That makes sense, thanks for the input. Is formalin easily obtained for this purpose?

Here is a directory on Colin Kaminski's website (same guy who set up the Lippmann forum at It doesn't appear to be linked to at his website actually, so it's kind of a "backdoor" thing. Most articles aren't in English unfortunately.

His website, also has lots of chemistry formulas. I'm just posting this stuff in hopes of consolidating all sources to this thread.