Lewisite 1
Lewisite 1 :
Chemistry and Chemical Disasters. "Lewisite is a type of chemical warfare agent. This kind of agent is called a vesicant or blistering agent, because it causes blistering of the skin and mucous membranes on contact. Lewisite is an oily, colorless liquid in its pure form and can appear amber to black in its impure form. Lewisite has an odor like geraniums. Lewisite contains arsenic, a poisonous element. Lewisite is also known by its military designation, "L". Lewisite was produced in 1918 to be used in World War I, but its production was too late for it to be used in the war. Lewisite has been used only as a chemical warfare agent. It has no medical or other practical use. Lewisite is not found naturally in the environment". (CDC, Facts About Lewisite, March 14, 2003 Update)
