Pneumatopotentiometric determination of
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FrantiΕ‘ek Opekar
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Article
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1986
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Elsevier Science
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English
β 453 KB
Hydrogen cyanide is liberated from aqueous samples by reaction with sulphuric acid and transferred by a stream of nitrogen to a silver porous membrane electrode. Some HCN passes through the membrane into an alkaline dicyanoargentate solution; the cyanide ion produced causes a decrease in the equilib