History & Process
- Sir John Herschel discovered the procedure in 1842
- Originally used for blueprints
- Using an equal parts mixture of potassium ferricyanide and ferric ammonium citrate to create a light-sensitive solution, apply to a surface and let dry in a dark place. Then the surface can be exposed to UV rays, with another sheet on top with the desired print to block light.
- Originally used for blueprints
- Using an equal parts mixture of potassium ferricyanide and ferric ammonium citrate to create a light-sensitive solution, apply to a surface and let dry in a dark place. Then the surface can be exposed to UV rays, with another sheet on top with the desired print to block light.
Chemicals Used
Potassium Ferricyanide: Health Hazard 2, Flammability 0, Physical Hazard 1
Ferric ammonium citrate: Health Hazard 1, Flammability 1, Physical Hazard 1
Ferric ammonium citrate: Health Hazard 1, Flammability 1, Physical Hazard 1
In Case of a Whoops
- Skin Contact: Was affected area with soap and water. Rinse exposed skin gently for 15-20 minutes. Seek medical attention if irritation continues.
- Eye Contact: Protect unexposed eye. Rinse/flush exposed eye gently using water for 15-20 minutes. Seek medical attention if irritation continues.
My Cyanotype
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About the Process
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