Word: urea
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Dates: during 1928-1928
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Since Friedrich Woehler a hundred years ago accidentally manufactured urea, scientists have synthesized more things than exist naturally in the animal, vegetable and mineral kingdoms. Carbon is the base of most of these new products. As diamond it is the most precious natural substance, as coal the most valuable. Carbon plus oxygen gives carbon monoxide, whence grows a myriad of compounds; carbon plus hydrogen gives methane, and its myriad; carbon plus nitrogen gives cyanogen, and its myriad; C plus N plus H gives hydrocyanic acid; C plus N plus H plus O gives urea. There are 400,000 carbon derivatives...