Physicochemical Properties of Arsenic-Containing Lewisite Detoxification Products

This paper presents results on the physicochemical properties of arsenic-containing substances—lewisite detoxification (destruction) products. Major attention is paid to the properties of hydrolytic sodium arsenite, a promising alternative industrial raw material for the production of high-purity arsenic and its compounds. Data are presented on the macro- and microcompositions of raw materials and temperature-dependent density and saturated vapor pressure of H3AsO4 solutions. The experimental data can be used in processing unconventional raw materials into extrapure arsenic-containing compounds.