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

At 05:24 AM  27/11/2006, Richard wrote:

<snip>
The sequestering agents are present to prevent deposition of aluminum from the hardener in hardening fixing baths and minerals from the wash water. They are probably not necessary if the wash aid is used for a small quantity of film or paper but I have not experimented with this. 
<end quote>
Would these sequestering agents prevent the calcium compounds causing the problems that Ralph has experienced? And/or would the bisulphite reduce the problem as a result of the pH being lower? I've been using just sulphite and metabisulphite in the quantities recommended by Richard with no problems, but the water here has a fairly small mineral content. 


=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your 
account (the same e-mail address and password you set-up when you subscribed,) 
and unsubscribe from there.

Other related posts: