Young's Demonstrative Translation of Scientific Secrets

Young's Demonstrative Translation of Scientific Secrets
A Collection of Above 500 Useful Receipts on a Variety of Subjects.

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Young's Demonstrative Translation of Scientific Secrets by Daniel Young

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1861

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182

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Young's Demonstrative Translation of Scientific Secrets
A Collection of Above 500 Useful Receipts on a Variety of Subjects.

By

0
(0 Reviews)

Book Excerpt

ulphate of copper, add a solution of ferrocyanide of pottasium, so long as a precipitate continues to be formed. This is allowed to settle, and the clear liquor being decanted the vessel is filled with water, and when the precipitate settles the liquor is again decanted, and continue to repeat these washings until the sulphate of potash is washed quite out; this is known by adding a little chloride of barium to a small quantity of the washings, and when there is no white precipitate formed by the test, the precipitate is sufficiently washed. A solution of cyanide of potassium is now added to this precipitate until it is dissolved, during which process the solution becomes warm by the chemical re-action which takes place. The solution is filtered, and allowed to repose all night. If the solution of cyanide of potassium that is used is strong, the greater portion of the ferrocyanide of potassium crystalises in the solution, and may be collected and preserved for use again. If the solution of cyanide of potassiu

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Daniel Martin Eckhart - A First-Rate Dreamer and Cloud-Buster
FEATURED AUTHOR - Daniel Martin Eckhart is the author of the novels Tales of Wychwood, The Champ, Barnaby Smith, Home, The Way It Is - and the screenwriting book Write, Write, Write. Before focusing on his writing career, Eckhart served in the Swiss military, guarded the Pope's life in the Vatican, worked for the United Nations, driving trucks across the Sinai Desert, delivering diplomatic mail to Damascus and driving armored limousines in Beirut. After five years in Israel, Lebanon, Iran and Iraq, Eckhart… Read more