STEM ≥ lead-based pigment in art of Japan
#art #ukiyo-e #pigment #chemistry #chemie #metallurgy #metallurgie
LEAD-BASED PIGMENT IN ART OF JAPAN
The use of lead-based paint in traditional Japanese art and decoration is called "mitsuda-e" (密陀絵). -- see JAANUS (Japanese Architecture and Art Net Users System), "Mitsuda-e" http://www.aisf.or.jp/~jaanus/deta/m/mitsudae.htm
Litharge or massicot are common names for the yellow lead oxide pigment used in artists' paint. This is also known as Mitsuda-sō (密陀僧) in Japan. -- see "Traditional yellow pigments in Japan." https://printsofjapan.wordpress.com/category/dyes/page/2/; and see JAANUS, "Mitsudasou" http://www.aisf.or.jp/~jaanus/deta/m/mitsudasou.htm
"A heavy yellow powder composed of lead monoxide. Litharge is prepared as the oxidized product of molten lead that has been stirred or atomized to incorporate air then cooled and ground to form the yellow powder. Massicot, another crystalline form of lead monoxide, occurs naturally but can also be made by heating lead carbonate to 300C. Litharge is lightly more orange than massicot due to some formation of red lead oxide .... They were used as a yellow pigments in paints and glazes." -- see CAMEO (Conservation and At Materials Online), "Litharge" http://cameo.mfa.org/wiki/Litharge; and see "Litharge lead oxide" https://www.nikitaindustries.com/litharge-lead-oxide-3841370.html
CURRENT RESEARCH: There is interest in finding alternative pigments which can be used in lieu of mitsudasou. This research is informed by concerns about environmental pollution and health safety issues. -- see Nakagawa, "Kyojo Iwa Enogu" http://nakagawa-gofun.co.jp/english/begin/kyojo.html
QUESTION: Did you know that lead oxide was used in traditional Japanese arts and crafts? Did you know that lead pigment can be yellow or orange -- not only white?
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QOTO = Question Others to Teach Ourselves?
@chikara tbh wanna say Politics ≥ STEM
https://en.wikipedia.org/wiki/Lead_paint#Regulation they found out about toxicity of lead in 1900.. yeah i presume some found out way earlier, but there... And banned when? 1977 for the US.
And they lead in oil. Also only reduced in the 70s. And only removed more recently, they're still selling the stuff in 3rd world countries with it. (ditto smoking) https://www.thenation.com/article/secret-history-lead/
And climate change was known about, researched by oil companies themselves, also since the 70s.
@jasper Thanks for the "tbh"
Your acronym was new to me, so I googled it. I liked learning about the evolution of nuance as explained in the featured snippet-- see "'Tbh' no longer just stands for 'to be honest' on Instagram" (Nina Godlewski). Business Insider. May 27, 2016. https://www.businessinsider.com/what-does-tbh-mean-2016-5
