Caffenol: Difference between revisions
Appearance
Content deleted Content added
added a URL to a site specializing in instructions on using coffee developing for art projects |
linked to German article |
||
Line 16: | Line 16: | ||
[[Category:Photographic chemicals]] |
[[Category:Photographic chemicals]] |
||
[[de:Caffenol]] |
Revision as of 14:07, 24 April 2012
Caffenol is a photographic alternative process whereby caffeine, sodium carbonate and optionally Vitamin C are used in aqueous solution as a film and print photographic developer.[1][2]
Other basic (as opposed to acidic) chemicals can be used in place of sodium carbonate, however sodium carbonate is the most common.[1]
There are many formulas for caffenol. All are based on preparations which contain caffeine (i.e. coffee and tea) and a pH modifier, most often sodium carbonate.[2][3] The chemistry of caffenol developers is based on the action of the reducing agent caffeic acid as well as caffeine.[1]