ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Quantitative spectral-solution analysis of macro-components in bauxite

V. Kriváň and M. Matherny

Slovak Technical University, Bratislava

Abstract: A spectral-soln. method for detn. of Al₂O₃, Fe₂O₃, SiO₂, and TiO₂ in bauxite, by applying a rotation disk as an electrode carrier, is described. Bauxite is fused with a 1:1.85 mixt. of Na₂CO₃ and Na₂B₄O₇.10H₂O in the ratio 1:10. The fusion is dissolved in a soln. of citric acid, and buffered with Na citrate to prevent SiO2 pptn. The inner standard is Ni, and for excitation a condensed spark is applied. Exptl. errors in 26 detns. are ±1.34% for Al₂O₃, ±2.3% for Fe₂O₃, ±3.1% for SiO₂, and ±4.7 for TiO₂.

Full paper in Portable Document Format: 1312a796.pdf (in Slovak)

Chemical Papers 13 (12) 796–802 (1959)