I hope the chemists might weigh in on this but I am wondering if a soak in an
EDTA solution might help?
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Ibrahim Pamuk
Sent: Saturday, March 13, 2021 8:04 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] A white residual layer after toning
Hi,
I do toning on B&W prints. Especially after lead bleached toned with thiourea,
a thin white layer forms. Probably it is a compound of silver with
ferricyanide, thiocyanate or similar or lead compounds of similar since bleach
has lead. Any comment? I have tried to use acetic acid solution, but it did not
help.
Regards,
Ibrahim Pamuk
