
Chemical weapon, introduced by the Germans in September 1917. One of the most toxic gases used in World War I, it acted against the lungs to cause pulmonary oedema; it also acted as a sneezing gas...
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http://www.encyclo.co.uk/local/20688

Phenyldichlorarsine was a chemical weapon, introduced by the Germans in September 1917. It was one of the most toxic gases used in the Great War. It acted against the lungs to cause pulmonary oedema and also acted as a sneezing gas and in contact with the skin raised blisters. It was the first lung injurant used in the war and was later adopted by ...
Found on
http://www.probertencyclopaedia.com/browse/FP.HTM
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