The mechanism of the sorption of gases by charcoal and other research in chemical warfare.

From service time and sorption gradient studies on sulfur dioxide and carbon tetrachloride, it was found that: ( 1) the equilibrium sorption weight could be represented by the Langmuir Adsorption Isotherm; (2) the “critical length” was a linear function of the initial concentration; (3) the length of the sorption gradient and the dead length varied as the logarithm of the initial concentration; (4) the weight of sorbed at any point in the charcoal bed increased with time according to: x = K e^-k/t and (5) the initial sorption of the gas by the first layers of the charcoal bed followed the relation: x = Ws (1 - e^-bt ) . Studies on the amines showed that the service time - bed length plot was not linear throughout its length. Chloropicrin could be removed from charcoal with 90% efficiency by refluxing with commercial pentane. In the fluorination of sulfur, diluting the fluorine with nitrogen and cooling the reaction tube gave higher yields of disulfur decafluoride and the lower fluorides and a lower yield of sulfur hexafluoride