selenium

Jonathan Bailey (quryhous@midcoast.com)
Sun, 29 Jun 1997 16:54:54 -0400

Greetings-

RE: the ammonium thiosulfate in Kodak rapid selenium toner.

Does anyone know of a source of selenium (powder or liquid) without all the
other ingredients Kodak uses?

Does anyone know the role the ammmonium thiosulfate (or any other additive)
might play in the action of the toner?

Would there be any benefit in using a 100% selenium toner (assuming it were
available) vs. Kodak's pre-packaged? I do understand that selenium,
especially powdered selenium is quite nasty and needs special handling. My
interest in this would be in relation to silver prints especially.

Thanks for the help.

Jon Bailey