Abstract: This invention is directed to a device for generating a V agent vapor and aerosol. The device comprises a container having a first and second chamber separated by a destructable diaphragm. The chemical components necessary to form the V agent are divided between the two compartments. Freon or a similar fluorinated hydrocarbon is placed in one of the chambers which communicates with an ejection nozzle through a sealed opening. An explosive charge is detonated to remove the diaphragm between the compartments and to allow the chemical components to combine and form the V agent. The heat of the reaction in the presence of the freon causes the pressure to increase in the chamber. This pressure, together with the heat of reaction, breaks the seal between the chambers and the ejection nozzle and the V agent is ejected from the nozzle as a vapor and aerosol.