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

Investigation of the electrode processes in melts of the cryolite-aluminum fluoride-alumina-sodium chloride system by the E-tau curves method

C. Kubík and M. Malinovský

Institut für anorganische Chemie der Slowakischen Akademie der Wissenschaften, Bratislava

Abstract: The electrode processes in melts of the system Na₃AlF₆-AlF₃-Al₂O₃-NaCl were studied at 1000° by the detn. of the potential of the arrest. The arrest potential is practically not affected by the cryolite ratio. The neg. values of the potential are increased at low Al₂O₃ concns. which can be explained by the fact that in this medium the Pt electrode functions as an O electrode. The addn. of NaCl to the electrolyte, in the production of Al, does not increase the possibility of Na sepn. at the cathode.

Full paper in Portable Document Format: 2211a851.pdf (in Slovak)

Chemical Papers 22 (11) 851–857 (1968)