File:Chinese woodcut; Alchemical refining furnace Wellcome L0038814.jpg

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current	23:06, 12 October 2014		2,069 × 3,104 (2.29 MB)	Fæ	=={{int:filedesc}}== {{Artwork \|artist = \|author = \|title = Chinese woodcut: Alchemical refining furnace \|description = Woodblock illustration fromWaike tushuo(Pictorial Manual of External Medicine), publishe...

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Author	Wellcome Library, London
Copyright holder	Copyrighted work available under Creative Commons Attribution only licence CC BY 4.0 http://creativecommons.org/licenses/by/4.0/
Image title	L0038814 Chinese woodcut: Alchemical refining furnace Credit: Wellcome Library, London. Wellcome Images images@wellcome.ac.uk http://wellcomeimages.org Woodblock illustration from Waike tushuo (Pictorial Manual of External Medicine), published in 1856 (6th year of the Xianfeng reign period of the Qing dynasty). It shows implements for creating and refining bagua da jiangdan (Eight-Trigram Grand Descending Elixir), with special attention given to the internal structure of the alchemical furnace. Eight-Trigram Grand Descending Elixir is a type of Hydrargyrum chloratum compositum - jiangdan or bai jiangdan -- obtained through the mixed crystallization of mercuric chloride (HgCl2) and mercurous chloride (Hg2Cl2), by heating mercury together with various minerals in the furnace. It was used to treat ulcers, fistulas, luoli (scrofula), xirou (polyps), wanxuan (chronic itchy skin condition), etc. Woodcut Library of Zhongguo zhongyi yanjiu yuan (China Academy of Traditional Chinese Medicine) Waike tushuo (Pictorial Manual of External Medicine) Gao Wenjin (Qing period, 1644-1911) Published: 1856 Copyrighted work available under Creative Commons Attribution only licence CC BY 4.0 http://creativecommons.org/licenses/by/4.0/
IIM version	2
Short title	L0038814 Chinese woodcut: Alchemical refining furnace
Headline	L0038814 Chinese woodcut: Alchemical refining furnace