Hydrogen Peroxide 3% 500ml




The cyanotype takes 24 hours for the oxidization to bring up the full image density.

To create instant oxidisation (changes to a brilliant blue) place in a water bath of  0.3% hydrogen peroxide for no more than 30 seconds

Continue to wash as usual.

Interesting fact  – Hydrogen peroxide was discovered in 1818 by the French chemist Louis Jacques Thenard. Thenard called his creation “oxygenated water” because it is essentially water with an extra oxygen atom.

Additional information

Weight .500 g
Hydrogen Peroxide

500 ml