Mega Fixer Tests

Tom Hoskinson · Apr 15, 2008

Absinthe said:
Paul --

Just an observation, perhaps something to consider. If the ph is truely a concern, have you accounted for the fact that in most cases, (at least as far as I remember) one is going directly from the stop bath into the fixer. It would aoppear at least in my mind, that one would be dragging a fair amount of stopbath into the fixer, would that not lower the ph significantly?

Not if the Fixer is alkaline or neutral and is ph buffered.

Absinthe · Apr 15, 2008

Tom Hoskinson said:
Not if the Fixer is alkaline or neutral and is ph buffered.

All I was suggesting was that when either going tray to tray or in a tank, there is some amount of stop bath left, and that is acidic right? Or is it towards ph neutral. I was not sure.

So are the ph of the stop bath and fixer near the same?

Photo Engineer · Apr 15, 2008

I think that the point here is that it does not matter. Most fixers are buffered well enough to prevent pH swings whether alkali or acid is carried in. Even hypo itself has some buffer capacity, and hypo is one thing fixers have a lot of.

PE

Absinthe · Apr 15, 2008

Ok, you've convinced me

Tom Hoskinson · Jul 5, 2008

Paul Verizzo said:
I hope I did this right......

Looks Good to me, Paul. Excellent job! Thanks for doing it!

Paul Verizzo · Jul 5, 2008

Thanks, Tom

Tom Hoskinson said:
Looks Good to me, Paul. Excellent job! Thanks for doing it!

I wasn't expecting this to be a new thread, but I guess your response did that.

It was fun, not too hard, and set a lot of "facts" to rest for me.

Mega Fixer Tests

Tom Hoskinson

Absinthe

Photo Engineer

Absinthe

Tom Hoskinson

Paul Verizzo

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