Conversion of solid amorphous zirconium and hafnium phosphates into alpha crystalline form via molten oxalic acid |
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| Authors: | S. K. Shakshooki N. Naqvi |
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| Affiliation: | (1) Basic Scientific Research Center, Chemistry Unit of Research, Secretariat of Education and Scientific Research, P. O. Box 13203, Tripoli, Libyan Great Jamahirya /G.S.P.L.A.J./ |
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| Abstract: | Solid amorphous zirconium phosphate /ZPa/ and hafnium phosphate /HPa/ are mixed with an excess of solid oxalic acid dihydrate and are digested in molten oxalic acid. Then oxalic acid is removed by extraction or by heating. The residue is washed with dilute HCl /0.01M/ and redistilled water. By this method  -ZP and -HP is formed from amorphous ones. |
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