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MILESTONES OF CHEMISTRY

MILESTONES OF CHEMISTRY. milestones = milníky. Hana Marková Lucie Řádková. 1899 Aspirin. Dr. Felix Hoffmann acetylsalicylic acid, now called aspirin

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MILESTONES OF CHEMISTRY

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  1. MILESTONES OF CHEMISTRY milestones = milníky Hana Marková Lucie Řádková

  2. 1899 Aspirin • Dr. Felix Hoffmann • acetylsalicylic acid, now called aspirin • reduce significantly the risk of heart attacks, and a number of factors all indicate that it can counteract the late effects of diabetes and possibly also of bower cancer.

  3. 1907 Persil • "In the near future the new washing powder Persil will be coming onto the market, giving you sparkling white by simply boiling, without effort or scrubbing. " • a Perborate as an oxygen carrier and Silicate • environmentally friendly washing powders that protect fibres

  4. 1935/40 Nylon • Thread of superpolyamide 6.6 (1935) • Wallace Hume Carothers

  5. 1935/40 Nylon • 1940 nylon stocking first appeared in the American market • New symbol • Open up new possible application for textile industry in virtually every day

  6. 1938 Teflon • Roy Plunkelt • New Jersey • The new plastic did not bubble when reacted with organic solvents, and could even withstand the most aggressive acids • Tetrafluoroethylene

  7. 1953 Genetic engineering • James Watson and Francis Crick • Bases: adenine (A), cytosine (C), guanine (G), thymine (T) • Open up new prospects for pharmaceutical developement

  8. 1955 Polio vaccination • "Oral vaccination is sweet, but polio is cruel". • Dr. Jonas E. Salk • first vaccines had been bred on monkey kidney cells • now disappeared from Europe Child receiving poliovaccine

  9. 1980 Microfibres • Material that goes beyond the limitations of natural fibres • Originally they had been developed to produce sport clothing • 75 percent of these materials are now used for fashion clothing

  10. Thank you for your attention     

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