Cyanotype Eraser Maybe Reducer

So I'm putting test drops of my supposed ferric oxalate (another story not
finished yet) emulsion on the back of some classic cyanotype test strips to
save on paper. After baking the strip I throw it on the bottom of my
darkroom sink and splash some "kallitype" developer on the ferric oxalate
spot to see what it does. I end up going up for dinner. When I come back the
thing that strikes me (other than I've still failed to make a reliable
ferric oxalate) is that the kallitype develper has erased almost all of the
cyanotype from the other side. Erased or bleached, it's gone no more
cyanotype. 50g. Borax with 40g. Rochelle Salt in 1litre of water. What's
going on here?

~m
Received on Wed Feb 15 21:30:51 2006