Spectrophotometric titration of zirconium in siliceous materials.
An accurate and selective complexometric titration procedure based upon a spectrophotometrically detected end-point has been developed for the determination of zirconium in glasses, glass-ceramics and refractories. A p-bromomandelic acid separation step for zirconium imparts excellent selectivity to the procedure. The method is particularly important for the 1-5% concentration range where a simple, accurate and selective method for the determination of zirconium has been lacking.
Sugawara
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KF
Research and Development Laboratories, Corning Glass Works, Corning, New York 14830, U.S.A.
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Strzegowski
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WR