Cyanotype printing

Risa S. Horowitz (babbleon@terraport.net)
Tue, 12 Mar 1996 22:36:38 -0500

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I have in the past used a dilution of 25cc 37% hydrochloric acid to
1litre of water to heighten the blues in my cyanotype prints.
I am curious to know if there exist weaker concentrations of
hydrochloric acid.
I am also curious to hear of experiences anyone call tell me of
using hydrochloric acid versus a dilution of hydrogen peroxide or bleach in
cyanotype printing. Anybody???

thank you
Risa S. Horowitz

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