[pure-silver] Re: substitute for commercial gold toner
- From: Daniel Bouzard <Daniel.BOUZARD@xxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 07 Dec 2004 22:58:47 +0100
Hello,
I am also using gold toner after s=E9l=E9nium split toning and I prepare
myself the gold toner following the Namias formula:
For 1l of water Ammonium thiocyanate 25g
Tartaric acid 2g
Sodium chloride 5g
This solution can be store for many weeks. Add just before toning 25ml
of a 1% gold chloride solution. Tone at 25=B0C. 1l of toning solution can ton=
e
about 12 24X30 cm prints.
Daniel
> De=A0: anclancy@xxxxxxxxxxx
> R=E9pondre =E0=A0: pure-silver@xxxxxxxxxxxxx
> Date=A0: Tue, 07 Dec 2004 19:04:34 +0000
> =C0=A0: pure-silver@xxxxxxxxxxxxx
> Objet=A0: [pure-silver] substitute for commercial gold toner
>=20
> Have been using Fotospeed gold toner and am looking for formula that i ca=
n mix
> my self , as i have on hand a wide variety of chemical used for other gol=
d
> toners. This toner is being used after selenium for extended times, long
> extended times with no color shifts.
> Fotospeed does not list the basic ingredients as do many other makers so =
I
> don't know what they are using that makes it so stable that it can be use=
d,
> put away and then re-used again.
>=20
> I have been doing a lot of research and have almost every known formula. =
Have
> also talked with the Formulary regarding their kits to determine what wou=
ld be
> a similar substitute.
>=20
> It has boiled down to GAF 231 or perhapes GP-1.
>=20
> Both contain basically the same chemicals; in varying amounts. I have use=
d
> GP-1 when doing split toning (Jonathan Bailey's version) but it is also
> recommend for basic protection rather than a color shift. 231 can and wil=
l
> produce a color shift but it's discription is similar to the one found on
> Fotospeeds directions. One indicates the use of Ammonium thiocyanate alt=
ho
> Sodium thiocyanate may be subsituted. the other indicates sodium thiocyan=
ate
> with Potassium thiocyanate may be subsituted. In my Morgan and Mortgan in=
dex
> all version of thiocyanate indicate their can be a substitution of any th=
e
> other types.=20
> My question is does it make a difference (am not a chemist, so i don't kn=
ow)?
> What i do know is that there is huge difference in cost.
>=20
> It would be nice to find a substitute that could be mixed and have on han=
d to
> use at a moments notice, which is one advantage that Fotospeed provides.
>=20
> Any thoughts?
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> regards,
> ann clancy
>=20
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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>=20
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