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K2TAF7 [1 record]

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Record 1 2011-12-16

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
K2TaF7
formula, see observation
CONT

Infrared and Raman spectroscopic measurements on a series of quenched alkali metal fluoride (Flinak) melts containing tantalum and oxide have led to the development of new methods of oxide analysis, which have an important use in the field of molten fluoride chemistry. The tantalum concentration was maintained at 2.7 mol %, with the oxide concentration varying from 0 to 5.4 mol %, over 22 samples. ... The frequency and relative intensities of the bands enable the assignment of Ta-F and Ta-0 bands for both fluorotantalate and oxofluorotantalate entities.

CONT

The water and tantalum solution from the extractor contains a fluotantalic acid solution, from which potassium fluotantalate (K-salt, K2TaF7) or tantalum pentoxide (Ta2O5) can be precipitated through the addition of either potassium fluoride, or ammonia.

OBS

fluorotantalate: generic term.

OBS

Chemical formula: K2TaF7

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
K2TaF7
formula, see observation
OBS

fluotantalate : terme générique se rapportant, en chimie minérale, aux sels complexes MTaF6 ou M2TaF7, où M est un métal monovalent.

OBS

Formule chimique : K2TaF7

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
K2TaF7
formula, see observation
OBS

Fórmula química: K2TaF7

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