Re: Making Albumen Solution with Kodak Indicator Stop

----- Original Message -----
From: "Michael Koch-Schulte" <mkochsch@shaw.ca>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Sunday, November 27, 2005 11:54 PM
Subject: Making Albumen Solution with Kodak Indicator Stop

> Not having immediate access to any glacial acetic acid I
> substituted Kodak
> Indicator Stop instead which is a 28 per cent solution
> instead of 99
> percent. I used 5 ml in a 500 ml solution of egg albumen.
> I encountered no
> problems with staining from the indicator or dyes used in
> the stop's stock
> solution. I think because the amount is so small the
> effects are negligible.
> The only ill effects were my eyes popping out of my head
> when I saw how long
> the tonal scale was for albumen -- 2.55. One question: can
> someone explain
> to me the purpose of acidifying the albumen solution with
> acetic acid?
> ~m
> p.s. A beneficial spin-off of making albumen is that these
> days I make a
> mean hollandaise sauce ...
>
  Beware that Kodak also makes indicator stop bath which is
about 50% Acetic rather than 28%.

---
Richard Knoppow
Los Angeles, CA, USA
dickburk@ix.netcom.com