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SIMULTANEOUS DETERMINATION OF NIOBIUM AND TANTALUM IN STEEL, FERRO-NIOBIUM AND PERMANENT MAGNET ALLOY

L. Kidman, Glenn White

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Abstract

A simple procedure is described for the simultaneous determination of niobium and tantalum in steels, ferroniobium, and permanent magnet alloy. The method depends on the solvent extraction of tantalum from the mixed oxides of tantalum and niobium obtained by precipitation with phenylarsonic acid from dilute hydrochloric acid solution. Trace amounts of tantalum are measured colorimetrically; niobium and amounts of tantalum greater than 0.1% are detemnined gravimetrically. (auth)

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A simple procedure is described for the simultaneous determination of niobium and tantalum in steels, ferroniobium, and permanent magnet alloy. The method depends on the solvent extraction of tantalum from the mixed oxides of tantalum and niobium obtained by precipitation with phenylarsonic acid from dilute hydrochloric acid solution. Trace amounts of tantalum are measured colorimetrically; niobium and amounts of tantalum greater than 0.1% are detemnined gravimetrically. (auth)

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Available abstract

A simple procedure is described for the simultaneous determination of niobium and tantalum in steels, ferroniobium, and permanent magnet alloy. The method depends on the solvent extraction of tantalum from the mixed oxides of tantalum and niobium obtained by precipitation with phenylarsonic acid from dilute hydrochloric acid solution. Trace amounts of tantalum are measured colorimetrically; niobium and amounts of tantalum greater than 0.1% are detemnined gravimetrically. (auth)

Key concepts: Tantalum, Niobium, Materials science, Metallurgy, Hydrochloric acid, Alloy, Precipitation, Inorganic chemistry

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SIMULTANEOUS DETERMINATION OF NIOBIUM AND TANTALUM IN STEEL, FERRO-NIOBIUM AND PERMANENT MAGNET ALLOY — Research Paper | ScholarLens