Word: acids
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Dates: during 1960-1969
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...copper and uranium only. When this "chelating agent" worked well in the laboratory with simulated sea water, Bayer took it to Naples, put it in a glass column and ran 100 liters (26.42 gal.) of real sea water through it. Then he flushed the chelating agent with dilute hydrochloric acid. Analysis proved that the acid had picked up 450 micrograms of copper and 50 micrograms of uranium, the precise amounts present in 100 liters of Bay of Naples water...
...another chelating agent with an appetite for gold and went back once more to Naples. There he put a pinch of the new compound in 100 liters of sea water and shook the mixture mechanically for twelve hours. Then he filtered out the chelating agent and washed it with acid. The result: 1.4 micrograms of gold (.000000049 oz.), the exact amount in 100 liters of Naples sea water...
...places where the water contains more gold than the Bay of Naples. Placed in a stream of sea water that is being pumped through a power-station condenser or a desalinization plant, the chelating compound would work quietly, collecting gold that could be extracted at intervals by washing with acid...
...month ago with a report from a Boston ophthalmologist that he had tracked down 14 cases of blindness or near blindness among contact wearers and several hundred more of eye damage, all within three years. There was speculation that the damage might have come from impurities such as free acid in the methyl methacrylate plastic (akin to Plexiglas) used for the lenses...
...name salicylic acid is derived from the Latin salix, willow, though the same substance occurs in many plants, including spiraea, from which the word aspirin is derived...