Thermodynamic treatment of H+/Sr2+ ion-exchange in γ-titanium phosphate
作者： C. Trobajo , M. Suárez , R. Llavona , J.R. García , J. Rodríguez
DOI: 10.1016/0040-6031(91)87041-T
关键词:
摘要: Abstract The H + /Sr 2+ ion-exchange in γ-Ti(HPO 4 ) 2 · 2H O was studied. Exchange isotherms and pH curves were obtained at 298.15, 313.15 328.15(± 0.1) K. half-exchanged phase TiHSr 0.5 (PO 3H (interlayer distance 1.34 nm) detected. equilibrium constants the standard molar Gibbs free energy, enthalpy entropy of exchange reaction determined.
elsevier.com
sci-hub.se 参考文章(19)
O. B. Michelsen, Photometric Determination of Phosphorus as Molybdovanadophosphoric Acid Analytical Chemistry. ,vol. 29, pp. 60- 62 ,(1957) , 10.1021/AC60121A017
S. Allulli, C. Ferragina, A. La Ginestra, M.A. Massucci, N. Tomassini, Preparation and ion-exchange properties of a new phase of the crystalline titanium phosphate, Ti(HPO4)2·2H2O Journal of Inorganic and Nuclear Chemistry. ,vol. 39, pp. 1043- 1048 ,(1977) , 10.1016/0022-1902(77)80261-3
G. Alberti, M.G. Bernasconi, M. Casciola, U. Costantino, Crystalline insoluble acid salts of tetravalent metals—XXXIV Journal of Inorganic and Nuclear Chemistry. ,vol. 42, pp. 1637- 1640 ,(1980) , 10.1016/0022-1902(80)80329-0
G. Alberti, U. Costantino, M.L. Luciani Giovagnotti, Ion-exchange properties of γ-titanium phosphate and its monosodium forms towards Mg2+ and Ca2+ ions Journal of Chromatography A. ,vol. 201, pp. 175- 185 ,(1980) , 10.1016/S0021-9673(00)83872-8
Etsuro Kobayashi, Shinsuke Yamazaki, Studies of Inorganic Ion Exchangers. VI. The Formation Region and Dehydration Behavior of Various Titanium(IV) Bis(hydrogenorthophosphate) Hydrates Bulletin of the Chemical Society of Japan. ,vol. 56, pp. 1632- 1636 ,(1983) , 10.1246/BCSJ.56.1632
R. Llavona, J.R. García, M. Suárez, J. Rodríguez, Synthesis of γ-titanium phosphate. study of the solids obtained by using water or acetone as washing agents Thermochimica Acta. ,vol. 86, pp. 281- 289 ,(1985) , 10.1016/0040-6031(85)87056-8
George L. Gaines, Henry C. Thomas, Adsorption Studies on Clay Minerals. II. A Formulation of the Thermodynamics of Exchange Adsorption The Journal of Chemical Physics. ,vol. 21, pp. 714- 718 ,(1953) , 10.1063/1.1698996
A. La Ginestra, M.A. Massucci, Titanium and zirconium acid phosphate dihydrates: thermal behaviour and phase changes of their hydrogen, sodium and strontium forms Thermochimica Acta. ,vol. 32, pp. 241- 256 ,(1979) , 10.1016/0040-6031(79)85112-6
Ricardo Llavona, Marta Suarez, Jose R. Garcia, Julio Rodriguez, Lamellar inorganic ion exchangers. Alkali metal ion exchange on .alpha.- and .gamma.-titanium phosphate Inorganic Chemistry. ,vol. 28, pp. 2863- 2868 ,(1989) , 10.1021/IC00313A033
Ricardo. Llavona, Marta. Suarez, Jose R. Garcia, Julio. Rodriguez, x-Ray diffraction spectrometry for analysis of lamellar ion-exchangers of the .alpha.- and .gamma.-zirconium phosphate type Analytical Chemistry. ,vol. 58, pp. 547- 551 ,(1986) , 10.1021/AC00294A011