[pure-silver] Re: I say Ammonium you say Potassium

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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