From: Sandy King (email@example.com)
Date: 10/31/03-02:16:10 PM Z
Ryuji Suzuki wrote:
>There are some modern literature on this topic, but mostly
>focusing on sulfiding and selenium toning because sulfiding allows
>maximum permanence with minimum cost, and selenium toning was once
>thought to give complete protection against oxidative attacks due to
>peroxide with minimum hue shift.
This prompts a further question. Since there clearly appears to be
some silver metal remaining in a platinum or palladium toned
kallitype, would it make sense from the perspective of permanence to
follow the pt/pd toning with selenium toning to convert the the
remaining silver in the print to silver selenide?
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