| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10557491 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005 | 7 Pages |
Abstract
This study is focused on the composition and the evolution of tungstate ions solutions as a function of pH and increasing concentrations. The Raman analysis showed that, during the titration of the tungstate solutions, WO42â, HWO4â ions and probably W2O72â, HW2O72â and H2W2O7 solvated species could exist in aqueous solutions. For diluted solutions, additions of a strong acid does not cause any precipitation, whereas the formation of the unstable solid tungstic acid (H2WO4 or WO3·H2O) could occur in concentrated solutions.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Thierry Barré, Laurent Arurault, François X. Sauvage,