RAMAN SPECTRAL STUDY OF WCL6 IN ALKALI CHLORIDE MELTS

Authors
CAROUNTZOS G KONTOYANNIS CG OSTVOLD T
Citation
G. Carountzos et al., RAMAN SPECTRAL STUDY OF WCL6 IN ALKALI CHLORIDE MELTS, Berichte der Bunsengesellschaft fur Physikalische Chemie, 101(5), 1997, pp. 847-850
Citations number
12
Categorie Soggetti
Chemistry Physical
Journal title
Berichte der Bunsengesellschaft fur Physikalische Chemie
ISSN journal
00059021 → ACNP
Volume
101
Issue
5
Year of publication
1997
Pages
847 - 850
Database
ISI
SICI code
0005-9021(1997)101:5<847:RSSOWI>2.0.ZU;2-4
Abstract
The chemistry of tungsten chlorides in the LiCl/KCl eutectic has been investigated by Raman spectroscopy between 400 and 500 degrees C. It h as been found that W(VI) is reduced to W(V) directly by the free Cl- i on in the melt and the octahedral complex ion WCL6- is formed. Additio n of metals (Al, Zn, Pb, W) causes further reduction of W(V). Dependin g on the metal added WCl62- or W metal can be obtained.