caa a22 4500 445327642 CHVBK 20180317142726.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10953-011-9706-2 doi (NATIONALLICENCE)springer-10.1007/s10953-011-9706-2 Dias Anderson Departamento de Química, ICEB II, Sala 67, Universidade Federal de Ouro Preto, 35400-000, Ouro Preto, MG, Brazil aut Theoretical Calculations and Hydrothermal Processing of BaWO4 Materials Under Environmentally Friendly Conditions [Elektronische Daten] [Anderson Dias] The hydrothermal processing conditions of BaWO4 was studied by using a thermodynamic model of electrolytic solutions in order to avoid the empirical trial-and-error mode for optimizing synthesis of this material. The approach used makes it possible to predict the optimum conditions through stability and yield diagrams, which relate the equilibrium concentration of all species present as a function of temperature, solution pH, and input reagent concentrations. The theoretical predictions were verified by experiments at the predicted optimum conditions. The results showed that the thermodynamic model is adequate to predict the hydrothermal synthesis conditions under which BaWO4 is stable and can be obtained as a phase-pure form. Springer Science+Business Media, LLC, 2011 Thermodynamics nationallicence Hydrothermal synthesis nationallicence Microwave nationallicence Tungstates nationallicence BaWO4 nationallicence Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/6(2011-06-01), 1126-1139 0095-9782 40:6<1126 2011 40 10953 https://doi.org/10.1007/s10953-011-9706-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10953-011-9706-2 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Dias Anderson Departamento de Química, ICEB II, Sala 67, Universidade Federal de Ouro Preto, 35400-000, Ouro Preto, MG, Brazil aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/6(2011-06-01), 1126-1139 0095-9782 40:6<1126 2011 40 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer