| 41. | In May 1928, eleven tons of phosgene escaped from a war surplus store in central Hamburg.
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| 42. | There are several fluorometric reagents for phosgene, and it can also be quantified with mass spectrometry.
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| 43. | BLISTER AGENTS : There are three agents categorized as blister agents : mustard, Lewisite and phosgene oxime.
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| 44. | -- June 1918 : First U . S . use of phosgene and other gases in warfare.
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| 45. | Britain used a range of poison gases, originally chlorine and later phosgene, diphosgene and mustard gas.
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| 46. | The death of a worker from exposure to phosgene also prompted a search for a safer production process.
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| 47. | Thus, reaction of ( 1 ) with phosgene gives the reactive the isatoic anhydride ( 2 ).
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| 48. | To suppress the formation of ureas excessive phosgene is used ( in a 3 : 1 ratio ).
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| 49. | Phosgene was a nerve gas used during World War I and is now used as a commercial feeder chemical.
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| 50. | Chlorine, phosgene, and hydrogen cyanide are examples, all noxious if inhaled but limited in killing power.
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