Ion Exchange Equilibria between Alkali Metals and Hydrogen Ions on Iron(III) Antimonate, an Inorganic Ion Exchanger

STUDY ON THE COMPLEX FORMATION BETWEEN N-PROPYLSALICYLIDENE BASED ON SILICA AS ION EXCHANGER AND SOME TRANSITION METAL IONS

N-propylsalicylidene based on silica as ion exchanger (IE) was used for the separation by complexation of Mn2+, Co2+, Ni2+, Cu2+, Hg2+, Cr3+, Fe3+, and UO22+ from their parent solutions. IE and its metal complexes are characterized by elemental analysis, electronic and infrared spectra, in addition to thermal analysis in atmospheric pressure. The mode of chelation and the proposed geometric str...

Gadolinium-hydrogen Ion Exchange on Zirconium Phosphate

Solid NMR Study of the Ion - Exchange Properties on ƒÁ - Titanium Phosphate with Alkali Metal Ions

Layered ƒÁ-titanium phosphate (ƒÁ-TiP), Ti(HP04)2.2H20, is well known as the host material of intercalation compounds and the inorganic ion-exchanger of H+/metal ion system. It was found to have high ion-exchange selectivity for Rb+ and Cs+ among alkali metal ions. The ionexchange reactions for these ions progressed in two steps according to pH. Part of water molecules in the mterlayer of ƒÁ-Ti...

Hydrogen ion equilibria in fish haemoglobins.

H+ titration studies on oxygenated and deoxygenated haemoglobins from carp, rainbow trout, spiny dogfish and pig are reported, and compared with Hb-H+ equilibria in other species and structural information deduced from amino acid sequences. The buffer values of oxygenated and deoxygenated teleost haemoglobins are low in comparison with elasmobranch and mammalian haemoglobins. This correlates wi...

XAFS Study of Thermal Effect on Hydration Structures of Inorganic Ions in Ion- Exchange Resins