Digital BW, The Print

Bear in mind that I am talking about silver gelatin photo prints, not ink jet.
Don't have any
long term exp with ink jet, but I sure do with silver.

You and I both seem to have evidence that acid in photo prints is not bad, nor
is mounting
them on acid board, nor storing them in an acid environment (sealed container
full of acid
mount boards). And none of my (very) old prints were toned.

As for ink jet, wouldn't it be a major surprise if they reacted like silver
prints, afterall they
have nothing in common.

and lets take this offline, the digi guys probably don't care about silver, and these groups 
get mucked up enough. Or call it a day---I can't think of any thing more worth saying. :
~)


Scott 

PS most everything migrates from people to flies in the house to mold on my cup
to smells
in the house, etc. It is a physical principle (diffusion) that everything not
already uniformly
distributed will migrate (diffuse) towards even distribution which is a lower
energy state.


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark" <paul.roark@v...> 
wrote:
> Scott,
> 
> Air borne acid?  
> 
> That may not be technically correct, and I'm not a chemist.  However, my
> understanding is that acids are molecules that have, in effect, a loose H+
> ion.  That ion travels by latching onto other molecules, with water vapor
> being a primary "host"(?).
> 
> As a practical matter I've heard it said many times that acids "migrate."
> As such, the photos we want to last should not be stored near (even in the
> same file cabinet, apparently) acidic materials.
> 
> While the acids may not be affecting the image directly (yet), some of the
> acidic papers, like EEM, can have very short lives -- much shorter than the