ON THE MECHANISM OF ION-EXCHANGE IN ZIRCONIUM-PHOSPHATES .27. DEHYDRATION BEHAVIOR OF CU(II) ION-EXCHANGED PHASES Academic Article

abstract

• The dehydration behavior and phase changes of crystalline -zirconium phosphate exchanged to increasing levels of Cu(II) content have been determined by thermal and X-ray methods. The fully exchanged compound is ZrCu(PO4)24H2O which loses 1 mole of water below 100C and this phase in turn loses another 1.5 moles below 200C forming ZrCu(PO4)21.5H2O. Additional mole of water is lost between 200 and 300C yielding a solid with a poorly defined X-ray pattern. However, annealing in this temperature range produces a well crystallized phase (termed phase G). This phase has a variable water content ranging from 0.5 to zero moles and long heating times at 400-450C are required to achieve the anhydrous state. In the region of low copper contents the phases formed are solid solutions which resemble -zirconium phosphate phases. 1980.

authors

• Clearfield, Abraham

published proceedings

• JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY

author list (cited authors)

• CLEARFIELD, A., & PACK, S. P.

citation count

• 16

complete list of authors

• CLEARFIELD, A||PACK, SP

publication date

• January 1980

publisher

• Elsevier  Publisher

published in

• Journal of Inorganic and Nuclear Chemistry  Journal

Digital Object Identifier (DOI)

• 10.1016/0022-1902(80)80229-6

start page

• 771

end page

• 774

volume

• 42

issue

• 5

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2F0022-1902%2880%2980229-6