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Phosgene was used by the German army from the end of May 1915, when attacks were conducted on the Western Front against French troops and on the Eastern Front on Russians, where 12,000 cylinders with 240–264 long tons (244–268 t) of 95 per cent chlorine and 5 per cent phosgene was discharged on a 7.5 mi (12 km) front at Bolimów. [5]
German phosgene came in the form of diphosgene, codenamed Grün Kreuz (Green cross). This was less effective than its allied counterpart, being less toxic and slower to evaporate, but was easier to handle in shell manufacture early in the war. [35] Phosgene was a potent killing agent, deadlier than chlorine.
Phosgene was first deployed as a chemical weapon by the French in 1915 in World War I. [24] It was also used in a mixture with an equal volume of chlorine, with the chlorine helping to spread the denser phosgene. [25] [26] Phosgene was more potent than chlorine, though some symptoms took 24 hours or more to manifest.
The PH helmet was used throughout early 1916 by British troops in which was designed to be tucked under the shirt of the wearer. The masks were an evolution of the P Helmet, and were effective against phosgene gas by adding hexamine to sodium phenate solution which acted as an absorbent to the phosgene gas. [7]
The gas had a devastating effect, killing many defenders or, when the wind direction changed and blew the gas back, many attackers. The wind being unreliable, another way had to be found to transmit the gas. It began being delivered in artillery shells. [14] Later, mustard gas, phosgene and other gasses were used. Britain and France soon ...
Traces of a toxic, colorless gas were found at the headquarters of Sweden’s security agency where a suspected gas leak last week forced authorities to evacuate some 500 people from the facility ...
Gases were frequently mixed. For example, white star was the name given to a mixture of equal volumes of chlorine and phosgene, the chlorine helping to spread the denser but more toxic phosgene. Despite the rapid technical developments that occurred in the production of specialised agents, chemical weapons suffered from diminishing ...
Lenin's Soviet government employed poison gas in 1921 during the Tambov Rebellion. An order signed by military commanders Tukhachevsky and Vladimir Antonov-Ovseyenko stipulated, "The forests where the bandits are hiding are to be cleared by the use of poison gas. This must be carefully calculated, so that the layer of gas penetrates the forests ...