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Determination of silver ion with various concentrations of hydrogen chloride as precipitant
Authors:Frederick G. Germuth
Affiliation:Department of Public Works, Bureau of Standards, Division of Research, Baltimore, USA
Abstract:It has been shown that 0.15 N hydrogen chloride solution is most suitable for employment as precipitant in the quantitative estimation of silver ion, this procedure reducing adsorption to a minimum.When a more dilute solution of reagent is applied, there is a tendency for a portion of the silver to remain dissolved.When hydrogen chloride possessing a greater concentration than 0.15 N is utilized in this determination, adsorption of Cl? ion, and, to a lesser extent, of Ag+ ion, readily occurs.The data presented here have been obtained by careful application of a recognized method, during the course of which temperature effect, and solubility data were given due consideration. Meticulous nephelometric examination was subsequently accorded each experimental sample prior to the calculation of results.
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