Re: Sodium Carbonate (was Seeking Information on 2 problems with Gumprocess)

To: alt-photo-process-l@usask.ca
Subject: Re: Sodium Carbonate (was Seeking Information on 2 problems with Gumprocess)
From: Judy Seigel <jseigel@panix.com>
Date: Fri, 02 May 2008 02:41:12 -0400 (EDT)
Comments: "alt-photo-process mailing list"
Delivered-to: alt-photo-process-l-archive@www.usask.ca
In-reply-to: <007801c8ab07$c1a86ae0$0201a8c0@east>
List-id: alt-photo-process mailing list <alt-photo-process-l@sask.usask.ca>
References: <C43E040A.C88D%henry.rattle@ntlworld.com><48184EE8.5010609@vt2000.com><98766a900804300629x2b115d17p64af950936ab45d9@mail.gmail.com><004a01c8aac8$a8e63760$0200a8c0@DC5YX7B1><98766a900804300700o77fab84jb1bbf88c7e666174@mail.gmail.com><6.0.1.1.1.20080430082512.03a29cb0@pop.telus.net><Pine.NEB.4.64.0804301434050.7604@panix2.panix.com><007801c8ab07$c1a86ae0$0201a8c0@east>
Reply-to: alt-photo-process-l@usask.ca

On Thu, 1 May 2008, Don Sweet wrote:

I think the permanent lavender cyano toner may be lead acetate
Don Sweet

Ah ha ! Now that you mention it I recall that Bob Schramm had a formula that used (if memory serves) lead acetate to make a supposedly more lavender-y cyano ... I think he even sent me a sample -- this was approximately 132 years ago, but, though it was definitely a different shade of blue, to my eye it wasn't very lavender. (I'm being nice -- first, because I hate to be wrong in print, and 2nd, because Bob is so clever I fear to contradict him... but as I recall, I included his formula in the Post-Factory #5 section on cyano toning, so anyone who cares to is free to try it.

It's 2:40 AM now, practically next week) too late to look it up, but if there's a request I'll put it on the list next time I get here, which should be Saturday at the latest.

Meanwhile, thanks... (Have you tried it Don?)

J.