1939
DOI: 10.6028/jres.022.006
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Electroanalytical determination of copper and lead in nitric acid solution containing small amounts of hydrochloric acid

Abstract: In the analysis of copper-base alloys, chiefly brasses fI.nd bronze, difficulties have been encountered in consistently obtaining quantitative depositions of copper in nitric acid solutions, unless the nitric acid solution of copper is either fumed with sulfuric acid or evaporated to dryness and baked moderately. As a result of experiments made to remedy this trouble, it has been found that complet e deposition of copper is obtained if a trace of chloride ion (1 drop of 0.1 N hydrochloric acid) is added to the… Show more

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Cited by 13 publications
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“…ElectroseparationS of zinc, iron, and cobalt are often not very satisfactory, because of the difficulties of reproducing one's own as well as another's results. Copper separations must number hundreds of thousands daily, but even experienced workers (19) at the Bureau of Standards reported a few years ago that the copper depositions were often incomplete.…”
Section: Efficiency Of Separationmentioning
confidence: 99%
“…ElectroseparationS of zinc, iron, and cobalt are often not very satisfactory, because of the difficulties of reproducing one's own as well as another's results. Copper separations must number hundreds of thousands daily, but even experienced workers (19) at the Bureau of Standards reported a few years ago that the copper depositions were often incomplete.…”
Section: Efficiency Of Separationmentioning
confidence: 99%