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Recherches sur l'obtention, la séparation et la purification du tantale et du niobium, notamment par voie électrolytique. II. Etude d'une méthode de détermination des tensions effectives d'électrolyse et des tensions pratiques de décomposition; application de cette méthode à des solutions cryolithiques d'oxydes
Author(s) -
Monnier R.,
Grandjean P.
Publication year - 1960
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19600430738
Subject(s) - chemistry , humanities , philosophy
An apparatus has been developed for measuring the voltage at the terminals of the cell and the true effective voltage of the electolysis in function of the current. The intersection on the x axis of the extrapolated curves gives very clearly the decomposition voltage. The method is applied successfully to cryolitic solutions of Al 2 O 3 , Ta 2 O 5 , Nb 2 O 5 and V 2 O 5 .

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