Hello worldwide! Welcome back to war! To tell you the truth, because I'm a newbie on chemistry, this phosgene warfare chemical agent its a piece of cake!!!!! Its the last phosgene gas, its called Choloropicrin! Here is the recipe : To the 5 liter flask 550 g calcium hypochlorite made into a paste in 1 liter water are placed. A paste of sodium picrate, made by mixing 50 g picric acid with 10 g sodium hydroxide and 250 ml water, is added with continuous stirring. The reaction is very rapid and is completed in about 30 min. To remove chloropicrin the reaction mixture is steam distilled until no more oily droplets come over. The oily distillate is separated from the water, dried over calcium chloride and redistilled. The yield is 70% of the theoretical. Chloropicrin is a slightly oily, colorless or yellow due to impurities liquid with a characteristic odor and with boiling point t 112° C.