Preparation and properties of uniform colloidal metal phosphates IV. Cadmium-, nickel-, and manganese(II)-phosphates |
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| Authors: | L L Springsteen E Matijević |
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| Institution: | (1) Present address: Department of Chemistry, Clarkson University, Potsdam, New York, USA |
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| Abstract: | Colloidal dispersions of uniform spherical particles of cadmium phosphate, nickel basic phosphate, and manganese (II) phosphate were prepared by aging at elevated temperatures metal salt solutions and phosphoric acid or sodium dihydrogen phosphate in the presence of urea and sodium dodecyl sulfate. Uniform spheres were obtained only if urea and the surfactant were added within a given range of concentrations.The spherical particles were amorphous as prepared. Cadmium phosphate and nickel basic phosphate particles crystallized when calcined at appropriate temperatures. Manganese (II) phosphate particles underwent a phase transformation to crystalline plate-like solids when aged in doubly distilled water at room temperature.Supported by NFS grant CHE-8619509.Part of M. S. Thesis by L.L.S. |
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| Keywords: | Colloidaldispersions cadmiumphosphate magnese(II)phosphate nickelphosphate phasetransformation |
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