## Abstract The electrolytic separation of Ta and Nb from cryolitic solutions of their respective pentoxides gives, under specified conditions, a yield of 90% of the initial Nb with a purity better than 98%.
Recherches sur l'obtention, la séparation et la purification du tantale et du niobium, notamment par voie électrolytique. I. Dosage du Ta et du Nb au moyen de radio-isotopes de ces éléments
✍ Scribed by Ph. Grandjean; P. Lerch; R. Monnier
- Publisher
- John Wiley and Sons
- Year
- 1960
- Tongue
- German
- Weight
- 309 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
Two radiochemical methods for the quantitative determination of tantalum and niobium, with the aid of ^182^Ta and ^95^Nb, are described. If only one of these radio‐isotopes is present, it can be determined by counting the gamma radiation emitted in a well‐cristal scintillator. The simultaneous determination of both Ta and Nb is possible by the interpretation of the entire spectrum obtained in the presence of both radioisotopes.
📜 SIMILAR VOLUMES
Des essais B blanc effectuBs en parallele ou, mieux encore, un Btalon interne permettent d'augmenter l'exactitude de la mCthode. Voici, & titre d'exemple, les points de trois courbes d'6talonnage (tableau 11), accompagnBs des Bcarts-type. Chaque valeur indiqu6e au tableau est la moyenne arithm6tiqu