Using powder CD-4 to make a 5% solution, is not the same as using the CD-4 solution from Tetenal. To start, the two solutions have different color, they have different degree of purity, perhaps. The solution I prepared is pink, the Tetenal's is colorless.
I got some 'picture' but hard to distinguish colors.
After this disaster, I made some important changes in the process and, in the next post, I can show some better results. I was discussing the subject with somebody in Flickr that gave me a very good idea. Keep connected with the blog, Caffcol is not dead yet, but maybe suffered some serious injuries. I can already hear someone saying: «I told you it wouldn't work, I told you!»
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