| 11. | On 4 June 1922, he was attacked with prussic acid ( hydrogen cyanide ), but escaped mostly unharmed.
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| 12. | A group may also be constructed to include the cyanogenic glucosides, i . e . those containing prussic acid.
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| 13. | Chemically, amygdalin and prunasin, the derivatives of which produce prussic acid can be extracted from " P . maximowiczii ".
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| 14. | It was revealed later to be holding morphine and strychnine to kill himself and prussic acid to disfigure his face.
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| 15. | Fearing no way out of addiction, they go to a restaurant and plan on killing themselves by drinking Prussic acid.
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| 16. | Police were called to the case and a second examination of the body revealed Mrs . Opdam's body contained prussic acid.
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| 17. | Miss Shingle appears, and confesses to the audience that it was she who slipped prussic acid into the earl s port.
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| 18. | Poirot examines the man and announces that Mayerling was gagged and poisoned by inhaling " prussic acid " ( hydrogen cyanide ).
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| 19. | It said they were blowing up containers of poisonous cholorine cholrine and pouring prussic acid in the path of advancing Russian troops.
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| 20. | From 1923, he worked on the catalytic dehydration of formamide to prussic acid in the indigo laboratory, developing this procedure for industrial use.
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