[pure-silver] Re: Self-Made HypoClear any good?

Ralph W. Lambrecht a écrit :


I started to make my own HCA, mixing 20g of sodium sulfite to 1 liter (2%)
as a working solution. I noticed that when I poured the solution into the
tray that the last 10% or so were not as clear as the rest (the solution is
a week old), but it seemed to mix OK.

After fixing I power-washed for 5 minutes and then used the HCA for 10
minutes, followed by a 30 minute wash. Then I wiped the prints off
(squeegee) and hung them to dry. I noticed later the the wiped-off liquid
turned white. Apparently some of the HCA is still in the print after a 30
minute wash!

Questions:

1. Does the residual HCA harm the print?
2. What is the best way to deal with this?





Regards



Ralph W. Lambrecht

http://www.darkroomagic.com






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Hi Ralph,
I commonly use a 20gr/l of sodium sulfite as washaid but I dump it at the end of the session. I've never experienced such milkiness but have recently received an email from a french guy that had such milkiness with the original Kodak HCA product which is supposed to last much more that the simple sodium sulfite. 
I've no idea what causes such milkiness ...

--
Claudio Bonavolta
http://www.bonavolta.ch

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