Saturated options in distilled water have sulfide at about 4 × 10−6 mol/liter. The solubility in h2o made up of hydrogen sulfide is to some degree lower, but of the same order of magnitude. In alkaline solution, the sulfides dissolve, with development of thioarsenites or thioarsenates. These sulfides are decomposed https://zanderwxwvu.wikitron.com/1316900/the_ultimate_guide_to_arsenic_lll_oxide