Prussian Blue: Ukiyo-e colorant
Prussian blue ベロ藍 (bero-ai): The first modern synthetic pigment, Prussian blue was an accidental discovery made around 1704–6 by chemist Johann Jacob Diesbach with the help of alchemist Johann Conrad Dippel. Composed of ferric ferrocyanide, this synthetically produced pigment yields a vivid blue. Due to its high cost as an import from the West during the 1800s, it was used initially for paintings. By the end of the 1820s, this pigment was produced in China, thus making it affordable for use as a colorant for woodblock printing.
Prussian blue's bright, intense “true blue” color, fine particle size, and high tinting strength soon made it an indispensable addition to the printmaker’s palette, largely supplanting dayflower and indigo. This enabled an even, sharp printing as well as a greater range of tones especially when printing graduated color. It is thought that the introduction of this colorant into the printmaker’s palette stimulated Hokusai and Hiroshige to design the iconic landscape prints for which they are celebrated. Prussian blue is both lightfast and stable to moisture.
For additional information see: Prussian blue
Examples of Prussian blue in Ukiyo-e Prints
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Analysis
Fiber optic reflectance spectroscopy (FORS) can easily identify the three blues: dayflower, indigo, and Prussian blue.
FORS spectrum of Dayflower reference 
FORS spectrum of Indigo reference 
FORS spectrum of Prussian blue reference
Images of Prussian blue
Prussian blue
Prussian blue at 100x
Prussian blue at 500x
Lumps of Prussian blue, by Takeo City Library
Prussian blue, by National Museum of American History
Prussian blue (audio), by Harvard Art Museums
Dr. Joe Schwarcz:The origins of Prussian blue (video), by Montreal Gazette
Prussian Blue -Make it then Paint it (video), by Chem Talk
List of Prints
Below is a list of prints where Prussian blue was detected.
Pages in category "Prussian Blue: Ukiyo-e colorant"
The following 12 pages are in this category, out of 12 total.
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- Hiroshige I, Enjoying the Cool of Evening on the Riverbed at Shijô, from the series Famous Views of Kyoto, 06.890
- Hiroshige I, Pine of Success and Oumayagashi, Asakusa River, from the series One Hundred Famous Views of Edo, 11.17029
- Hiroshige I, The Yodo River, from the series Famous Views of Kyoto, 11.2111
- Hiroshige I/Hiroshige II, Ueno Yamashita, from the series One Hundred Famous Views of Edo, 11.35842
- Hokkei, Ômori, from the series Souvenirs of Enoshima, a Set of Sixteen, 11.19845
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- Kuniyoshi, (Actor Ichikawa Ebizô V as) Inuyama Dôsetsu, from the series The Lives of Eight Brave and Loyal Dog Heroes, 11.28841
- Kuniyoshi, Drying Board Suggesting Hiyodorigoe, from the series Women in Benkei-checked Fabrics, 11.36363
- Kuniyoshi, Hosokute: Horikoshi Dairyô, from the series Sixty-nine Stations of the Kisokaidô Road, 11.28766