Detection of mercury in air in the presence of chlorine and water vapor

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Abstract
Evidence is presented that low concentrations of Hg and Cl vapor in air form reaction products. At constant Hg concentration the rate of formation increases with Cl concentration and relative humidity. The Hg-Cl compound and the vapor of elemental Hg are absorbed by Hopcalite or by KMnO4-H2SO4 scrubber solution. The compound can be separated from Hg vapor by its absorption in polyurethane or by filtration by means of Millipore aerosol membranes. [The industrial hygienist must frequently sample for Hg in the presence of Cl and H2O vapor.].