Mention222074

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so:text We find Theophrastus describing... the manufacture of white lead... "lead is placed in an earthen vessel over sharp vinegar, and after it has acquired some thickness of a kind of rust... they open the vessels and scrape it off. ...repeating over and over again... til it is wholly gone. What has been scraped off they then beat to a powder and boil with water for a long time, and what at last settles to the bottom is white lead. (en)
so:isPartOf https://en.wikiquote.org/wiki/J._R._Partington
so:description A Short History of Chemistry (1937) (en)
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