Crystalline insoluble acid salts of tetravalent metals—XXXIV

作者: G. Alberti , M.G. Bernasconi , M. Casciola , U. Costantino

DOI: 10.1016/0022-1902(80)80329-0

关键词: IonChemistryAqueous solutionIon exchangeAmmoniumAmmoniaInorganic chemistryPhosphatePotassiumHydrogenMaterials ChemistryPolymers and Plastics

摘要: Abstract The H + NH 4 ion-exchange and the ammonia uptake on γ-Ti(HPO4)2·2H2O has been investigated. first proton (3.63 meq/g) is completely exchanged at pH 7, without appreciable change in inter-layer distance. From 80 to 100% of exchange, there is, instead, a discontinuous from 11.2 13.6 A phase γ-Ti(NH4PO4)2 · NH2O formed. Also taken up, high rate, aqueous solution with formation half-and fully NH4+ forms. Thus use γ-titanium phosphate removal NH3 or ions waste solution, kidney machines, seems be possible. study potassium ammonium forms showed that structure layers phosphate, as already found for α-zirconium does not appreciably during an process.

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