[pure-silver] Re: I say Ammonium you say Potassium
- From: Eric Nelson <emanmb@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Tue, 21 Aug 2007 22:50:38 -0700 (PDT)
I went back to my copy of Blumann and didn't find the
Medal toner you mention but found some funny archaic
terms for chemicals like flower of sulphur.
There are a lot of toners he listed that are for
violet, green and other odd colors. It was fun to go
back and look at what I used to have fun playing with
years back. Ahh uranium toner...
When I get a chance I'll make a new batch and just use
the ammonium I have and the gold. I'll send "Jack" a
note that Ammonium should be mentioned on his page.
Unfortunately the window has closed for getting these
recent prints toned. Have to exhibit them "plain".
Eric
--- Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:
>
> ----- Original Message -----
> From: "Eric Nelson" <emanmb@xxxxxxxxx>
> To: <pure-silver@xxxxxxxxxxxxx>
> Sent: Tuesday, August 21, 2007 6:19 PM
> Subject: [pure-silver] Re: I say Ammonium you say
> Potassium
>
>
> > Thanks Richard!
> > Blumann's book here is circa 1937 and my edition
> of
> > Anchell's Cookbook is from 1994 so over a wide
> spread
> > of time nothing changed in my
> references...although I
> > wasn't around for Blumann haha!
> >
> > Too bad for me no one made any published notice of
> the
> > ability to substitute Pot. for Amm. that I could
> > easily find.
> >
> > Eric
> >
>
> I never even noticed this until you asked even
> though
> I've seen both versions a great many times. Anyway,
> its
> worth trying the toner. I suspect it will work even
> without
> the Gold Chloride although the color will be
> different.
> There is an older Hypo-Alum type toner with Gold
>
> Chloride called Gold-Medal toner, which I think
> Blumann may
> have in his book. It was included in Kodak formula
> books
> before Nelson's (1930). Hypo-Alum is in some ways a
> PITA and
> reportedly smells strongly of Hydrogen Sulfide. KBT
> is
> similar Hypo-Alum in that it produces cold-brown
> tones in
> comparison to indirect (bleach and redevelop) type
> toners
> but I suspect Nelson's is unique.
> As you are probably aware a standard Gold toner,
> which
> produces bluish tones on untoned images, will
> convert a
> silver sulfide image to red. Gold toner can be used
> with
> partial toning in a sulfide toner to get bluish
> shadows and
> reddish highlights.
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
>
>
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