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Cyanotype

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Created: 01/17/09

Last Edited: 01/17/09

Appreciations: 4

Comments: 0

Project Info

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Jonne Seijdel

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Attribution Non-commercial
No Derivatives

Fields: Crafts, Photography, Print Design

From: Jonne Seijdel's Portfolio

Cyanotype is a photographic printing process that gives a cyan-blue print (a pike perch is shown on this one).

They result in a photo-sensitive solution when dissolved in water, which is used to coat a material. A positive image can be produced by exposing it to a source of ultraviolet light with a negative. The UV light reduces the iron(III) to iron(II). This is followed by a complex reaction of the iron(II) complex with ferricyanide. The result is an insoluble, blue dye (ferric ferrocyanide) known as Prussian blue.

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