Tetenal Yellow toner help

[Ian Grant]

I have 3 bottles of Teyenal Multitoner Yellow/Gelb//Jaune Art. Nr, 4812. They came with a job lot darkroom clearance around 2000.

Can't find anything about it.

Ian

 

[koraks]

Sounds like a generic thiourea toner. One bottle is the bleach; it's a generic ferricyanide/bromide bleach which will have a strong yellow color.
The other two are the thiourea and the activator, respectively. They should both be colorless. One of them will have a very high pH (it's either a carbonate or a hydroxide solution; usually the latter), the other will be rather hard to identify since a weak thiourea solution doesn't have very easily observable properties AFAIK.

For guidelines on use, refer to any of the documents on thiourea ('odorless') sepia toners. The ratios/concentrations will likely vary across manufacturers, but the basic principles are always the same.

 

[Lachlan Young]

I thought Multi Toner was the dye coupler stuff - thus bleach, colour developer, yellow coupler in the three bottles?

 

[Ian Grant]

Sounds like a generic thiourea toner. One bottle is the bleach; it's a generic ferricyanide/bromide bleach which will have a strong yellow color.
The other two are the thiourea and the activator, respectively. They should both be colorless. One of them will have a very high pH (it's either a carbonate or a hydroxide solution; usually the latter), the other will be rather hard to identify since a weak thiourea solution doesn't have very easily observable properties AFAIK.

For guidelines on use, refer to any of the documents on thiourea ('odorless') sepia toners. The ratios/concentrations will likely vary across manufacturers, but the basic principles are always the same.

No it's either from the Colorvir tonning set or their Dye toner set.

Ian

 

[Ian Grant]

I thought Multi Toner was the dye coupler stuff - thus bleach, colour developer, yellow coupler in the three bottles?

I think your right. I never bought the Tetenal Multitoner instead mixing my own colour couplers and colour enveloper. I know Bob Carlos Clarke used the Tetenal kit for some of the images in his dark summer exhibition prints and book. Johnsons Colorform was a UK version released after WWII but kits were available in the 1930's.

Ian

 

[AgX]

I thought Multi Toner was the dye coupler stuff - thus bleach, colour developer, yellow coupler in the three bottles?

Yes, chromogenic development.

https://www.photrio.com/forum/threads/dye-based-toners.24956/#post-349385

 

[koraks]

Ah my apologies, I didn't consider that option.