Separation of silver from acid

Separation of silver from acid

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Credit: GEORGE BERNARD/SCIENCE PHOTO LIBRARY

Caption: Separation of silver from acid solution. historical engraving. This process, called precipitation, occurs after silver has been separated from gold by dissolving it in acid. A flux (catalyst) is added to the solution, which when heated causes the silver to precipitate out. Taken from The Laws of Art and Nature, in Knowing, Judging, Assaying, Fining, Refining and Inlarging the Bodies of Confin'd Metals (1683), John Pettus, a translation of the work by Lazarus Ercken.

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Keywords: 1600s, 17th century, acid solution, adult, apparatus, black-and-white, caucasian, chemical, chemistry, engraving, equipment, fluss, flux, furnace, heating, historical, history, history of science, human, illustration, laboratory, male, man, metallurgy, monochrome, precipitation, separating, separation, silver, technology, white, wind oven, worker

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