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Oxidation of tetrachloroethylene by ultraviolet radiation in air produces trichloroacetyl chloride and phosgene: 4 C 2 Cl 4 + 3 O 2 → 2 CCl 3 COCl + 4 COCl 2. This reaction can be halted by using amines and phenols (usually N-methylpyrrole and N-methylmorpholine) as stabilisers. But the reaction can be done intentionally to produce ...
At high temperatures in air, it decomposes or burns to produce poisonous phosgene. This was a common problem when carbon tetrachloride was used as a fire extinguisher [21] and there have been deaths due to its conversion to phosgene reported. [22]
9. air liquid mixture 10. pump outlet L: liquid, usually wastewater LL: liquid level V: Vessel G: Gravel or solids. An airlift pump is a pump that has low suction and moderate discharge of liquid and entrained solids. The pump injects compressed air at the bottom of the discharge pipe which is immersed in the liquid.
The Luftsturmregiment 40 (LStR-40) "Willi Sänger" (English: Air Assault Regiment 40) was a air assault infantry unit of the German Democratic Republic's National People's Army. It was formed in 1986 by expanding the existing Parachute Battalion 40 with additional air assault companies and support capability.
The pump's air intake is filtered by a rotating screen or the vehicle air filter to exclude dirt particles large enough to damage the system. Air is delivered under light pressure to the injection point(s). A check valve prevents exhaust forcing its way back through the air injection system, which would damage the pump and other components.
Hamas announced on Friday that among the three Israeli hostages to be released from Gaza on Saturday are an American dual national and the father of the youngest hostages taken from Israel on ...
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