Multicomponent Polyanions. 47. The Aqueous Vanadophosphate System

Autor: Anna Selling, Lage Pettersson, Shannan L. Downey, Ingegaerd Andersson, Charles M. Schramm, John H. Grate
Rok vydání: 1994
Předmět:
Zdroj: Inorganic Chemistry. 33:3141-3150
ISSN: 1520-510X
0020-1669
Popis: Equilibrium and metastable speciations in the aqueous vanadophosphate system in 0.6 M Na(CI) medium at 25 o C have been characterized by pH-potentiometry and high-field 31 P and 51 V NMR spectrometry. Equilibrations are slow at 25 o C, requiring months to years to reach equilibrium. The simultaneous analysis of [H + ]-emf data with 31 P and 51 V NMR shift and integral data was required to establish the speciation in aged, equilibrated solutions. Vanadophosphate speciw exist at equilibrium in solutions at 1.3
Databáze: OpenAIRE