> Dick Sullivan wrote:
> 
> >  I've been having a devil of a time producing consistent brown image color
> in my
> >  Ziatype process.
> 
> 
> which they call "brown toner" which is added to their citrate developer
> (?sodium ?ammonium).  It works very well:  one can get anywhere from a
> minimal brown tone up to a sepia effect with their paper or with hand-coated
> palladium prints, depending on the paper your're using and the amount of
> toner added to the developer.  I have continued to use this product for the
> past seven years with my hand-coated work, as I like very warm prints. 
> 
> I don't know what the chemical is; maybe someone on the list knows.
> 
> 
> Charlie Palmer
> Albuquerque NM USA
> 
> 
> 
Ask for a MSDS from the manufacturer if the ingredients aren't listed.  
Do you think there is a mercury salt in there?  Sure would be good to 
know if that is the case.
John > > > 
>