Physico-chemical Study of the Processes of Isopolivanadate Formation in Aqueous-organic Medium
Year: 2025
Type: article
Abstract: Based on the results of modeling the processes of complexation of isopolyvanadate anions in Na3VO4 (C=0.01; 0.1 mol/L) – HCl – NaCl – C3H7NO (CH3CN) – H2O systems at 25.0 ± 0.1 S, polycondensation reactions in aqueous dimethylformamide (C3H7NO) and aqueous acetonitrile (CH3CN) solutions of sodium orthovanadate were studied; diagrams of the distribution of dominant isopolyanions depending on the acidity and nature of the medium are proposed; it is found that it is more expedient to use solutions with a concentration of C(VO43--) > 0.1 mol/l and an organic solvent content of 20–30 vol.% for the synthesis of salts. Data from chemical, X–ray phase, IR spectroscopic are synthesized and characterized composition [N(C2H5)4]6V10O28·4H2O·4C3H7NO; [N(C2H5)4]4V4O12 ·4 H2O ·2C3H7NO; [N(C2H5)4]5V3O10 ·4 H2O ·C3H7NО; [N(C2H5)4]6 V10O28· 3H2O ·7CH3СN.
Authors: Belousova, E. E., Golubovich, V. S., Khomutova, E. V., Yablochkova, N. V.
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7084389807
FWCI:
Cites:
Cited by:
Related to: