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Etude des systemes CaHPO4−MHPO4−H2O (M=Sr, Ba) A 50°C

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Abstract

The systems CaHPO4−MHPO4−H2O (M=Sr, Ba) were studied at 50°C. ForM=Sr, the series of single phases, Ca1−xSrxHPO4 for 0.95<X<0.75 and CaxSr1−xHPO4 for 0.4<X<1 have been prepared.

These solid solution were caracterized by their infrared spectra and their crystallographic unit cell parameters.

ForM=Ba a new phase Ca2Ba(HPO4)3 has been determined. It was characterized by DRX, IR, ATD and chemical analyses.

Zusammenfassung

Bei 50°C wurde das System CaHPO4−MHPO4−H2O (mitM=Sr, Ba) untersucht. FürM=Sr wurden Serien von Einzelphasen erhalten: Ca1−xSrxHPO4 für 0.95<X< 0.75 und CaxSr1−xHPO4 für 0.4<X<1.

Diese Mischkristalle wurden anhand ihrer Infrarotspektren und ihrer kristallographischen Elementarzellenparameter charakterisiert.

FürM=Ba wurde die neue Phase Ca2Ba(HPO4)3 ermittelt. Sie wurde mittels DRX, IR, ATD und chemischer Analyse charakterisiert.

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Authors and Affiliations

  1. Institut National de Recherche Scientifique et Technique, Centre de Chimie Appliquée, Bordj-Cedria, BP95, Hammam-Lif, Tunisie

    S. Chabchoub & M. Dogguy

Authors
  1. S. Chabchoub
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  2. M. Dogguy
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Chabchoub, S., Dogguy, M. Etude des systemes CaHPO4−MHPO4−H2O (M=Sr, Ba) A 50°C. Journal of Thermal Analysis 45, 519–534 (1995). https://doi.org/10.1007/BF02548784

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  • DOI: https://doi.org/10.1007/BF02548784

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