I have read in Kosar's book "Light Sensitive Systems" (1965). various
references to extending the spectral sensitivity of dichomated colloids.
One suggestion being the addition of methylene blue and p-Tolune
Sulphinic Acid, and the like.
I wonder if any member of the group has carried out any experiments to
extend the the spectral sensitiviy of gum bichromate systems, and if so
with what result?
Alex.
Alex Nanson
Gloucester UK