Blue Toner in Large Format Posted January 11, 2002 Ferricyanide-iron toner for blue tones <p> STOCK FERRICYANIDE SOLUTION Potassium ferricyanide 2 gr Sulphuric acid, con. 4 cc Water to make 1000 cc dissolv the potassium ferrricyanide in the water and the add the acid slowly <p> STOCK IRON SOLUTION Ferric ammonium citrate 2 g Sulphuric acid,con 4 cc Water to make 1000 cc <p> Dissolve the ferric ammonium citrate in the water and the add the acid slowly. For use , mix equal parts of the two solutions just before use. The prints should be a bit lighter than usually.
Blue Toner
in Large Format
Posted
Ferricyanide-iron toner for blue tones
<p>
STOCK FERRICYANIDE SOLUTION
Potassium ferricyanide 2 gr
Sulphuric acid, con. 4 cc
Water to make 1000 cc
dissolv the potassium ferrricyanide in the water and the add the acid
slowly
<p>
STOCK IRON SOLUTION
Ferric ammonium citrate 2 g
Sulphuric acid,con 4 cc
Water to make 1000 cc
<p>
Dissolve the ferric ammonium citrate in the water and the add the acid
slowly. For use , mix equal parts of the two solutions just before use.
The prints should be a bit lighter than usually.