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SPECTROCHEMICAL DETERMINATION OF SMALL CONCENTRATIONS OF NIOBIUM AND TANTALUM IN ROCKS

I. A. Krinberg, V.D. Tsykhanskii

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Abstract

A spectrochemical method for the determination of small quantities of niobium and tantalum in rocks was developed including a preliminary chemical concentration with the use of phenyl-arsonic acid for the precipitation of the elements together with titanium followed by a spectrographic analysis of the products of concentration. The determination of niobium and tantalum is possible when their concentration in rocks is not less than 5 x 10/sup -5/%; the probable experimental error is about 7% for niobium and 9% for tantalum. (auth)

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What this paper is about

A spectrochemical method for the determination of small quantities of niobium and tantalum in rocks was developed including a preliminary chemical concentration with the use of phenyl-arsonic acid for the precipitation of the elements together with titanium followed by a spectrographic analysis of the products of concentration. The determination of niobium and tantalum is possible when their concentration in rocks is not less than 5 x 10/sup -5/%; the probable experimental error is about 7% for niobium and 9% for tantalum. (auth)

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Available abstract

A spectrochemical method for the determination of small quantities of niobium and tantalum in rocks was developed including a preliminary chemical concentration with the use of phenyl-arsonic acid for the precipitation of the elements together with titanium followed by a spectrographic analysis of the products of concentration. The determination of niobium and tantalum is possible when their concentration in rocks is not less than 5 x 10/sup -5/%; the probable experimental error is about 7% for niobium and 9% for tantalum. (auth)

Key concepts: Tantalum, Niobium, Titanium, Precipitation, Materials science, Metallurgy, Analytical Chemistry (journal), Inorganic chemistry

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