出版社：National Institute of Occupational Safety and Health
摘要：The author tried a series of experiments for the purpose of capturing mercury vapor in air. Mercury was captured with various types of impingers containing a solution of potassium permanganate (KMnO4) in sulphuric acid (H2SO4) as sampling solutions. Though the mechanism of reaction between mercury and sampling solu-tion is complicate, all the types of impingers used had a very excellent sampling efficiency. This solution is unstable: dissolved potassium permanganate in the sam-pling solution changes to manganese dioxide, and granules of manganese dioxide educes out gradually. The greater part of captured mercury was adsorbed on educed manganese dioxide, and mercury captured in liquid phase was rather little in amount. Potassium permanganate played a great part in capture of mercury, and sulphuric acid was necessary for the adsorption of mercury on manganese dioxide.
