The Role of HPO42- and CO32- Ions in the Transformation of Synthetic Apatites to β-Ca3(PO4)2

F. Apfelbaum; I. Mayer; J. D.B. Featherstone

doi:10.1016/0162-0134(90)85001-D

The Role of HPO₄^2- and CO₃^2- Ions in the Transformation of Synthetic Apatites to β-Ca₃(PO₄)₂

F. Apfelbaum
, I. Mayer^*
, J. D.B. Featherstone

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The simultaneous effect of HPO₄^2- and CO₃^2- ions on the thermal decomposition of synthetic carbonated apatites to β-tricalcium phosphate has been studied. The apatites were prepared under different pH conditions and with different carbonate concentrations and were then heated with and without CaHPO₄·2H₂O up to 1100°C. The products were studied by infrared, Fourier transform infrared, and x-ray diffraction methods. The results showed that when HPO₄^2- is present in the system (preparation at low pH or addition of CaHPO₄), β-Ca₃(PO₄)₂ formed below 700°C and that decomposition was slower or was prevented totally in the presence of carbonate ions.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Journal of Inorganic Biochemistry
Volume	38
Issue number	1
DOIs	https://doi.org/10.1016/0162-0134(90)85001-D
State	Published - 1990

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title = "The Role of HPO42- and CO32- Ions in the Transformation of Synthetic Apatites to β-Ca3(PO4)2",

abstract = "The simultaneous effect of HPO42- and CO32- ions on the thermal decomposition of synthetic carbonated apatites to β-tricalcium phosphate has been studied. The apatites were prepared under different pH conditions and with different carbonate concentrations and were then heated with and without CaHPO4·2H2O up to 1100°C. The products were studied by infrared, Fourier transform infrared, and x-ray diffraction methods. The results showed that when HPO42- is present in the system (preparation at low pH or addition of CaHPO4), β-Ca3(PO4)2 formed below 700°C and that decomposition was slower or was prevented totally in the presence of carbonate ions.",

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AU - Mayer, I.

AU - Featherstone, J. D.B.

PY - 1990

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N2 - The simultaneous effect of HPO42- and CO32- ions on the thermal decomposition of synthetic carbonated apatites to β-tricalcium phosphate has been studied. The apatites were prepared under different pH conditions and with different carbonate concentrations and were then heated with and without CaHPO4·2H2O up to 1100°C. The products were studied by infrared, Fourier transform infrared, and x-ray diffraction methods. The results showed that when HPO42- is present in the system (preparation at low pH or addition of CaHPO4), β-Ca3(PO4)2 formed below 700°C and that decomposition was slower or was prevented totally in the presence of carbonate ions.

AB - The simultaneous effect of HPO42- and CO32- ions on the thermal decomposition of synthetic carbonated apatites to β-tricalcium phosphate has been studied. The apatites were prepared under different pH conditions and with different carbonate concentrations and were then heated with and without CaHPO4·2H2O up to 1100°C. The products were studied by infrared, Fourier transform infrared, and x-ray diffraction methods. The results showed that when HPO42- is present in the system (preparation at low pH or addition of CaHPO4), β-Ca3(PO4)2 formed below 700°C and that decomposition was slower or was prevented totally in the presence of carbonate ions.

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The Role of HPO₄^2- and CO₃^2- Ions in the Transformation of Synthetic Apatites to β-Ca₃(PO₄)₂

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