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Etude de phosphates condenses diagramme d’equilibre du systeme AgPO3−Pr(PO3)3 Données sur AgPr(PO3)4

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Abstract

The AgPO3−Pr(PO3)3 system has been studied for the first time by differential thermal analysis, X-ray diffraction and IR spectroscopy. The system shows one compound AgPr(PO3)4 which melts in a peritectic decomposition at 1069 K. An eutectic appears at 761 K.

AgPr(PO3)4 belongs to the monoclinic system with space group P2t/c,Z=4. The parameters of the unit cell are:a=12.000(9),b=13.177(4),c=7.046(5) Å and β=123o,81(6),Z=4.

Its IR absorption spectrum is typical of chain phosphates.

Zusammenfassung

Erstmalig wurde das System AgPO3−Pr(PO3)3 mittels DTA, Röntgendiffraktion und IR-Spektroskopie untersucht. Das System weist eine Verbindung AgPr(PO3)4 auf, die unter peritektischer Zersetzung bei 1069 K schmilzt. Bei 761C erscheint ein Eutektikum. AgPr(PO3)4 gehört zum monoklinen System mit der Raumgruppe P21/c,Z=4. Die Parameter der Elementarzelle lauten:a=12.000(9),b=13.177(4),c=7.046(5) Å und β=123,81(6),Z=4.

Das IR-Absorptionsspektrum ist typisch für Kettenphosphate.

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Authors and Affiliations

  1. Ecole Normale Supérieure, Zarzouna, Bizerte, Tunisie

    D. Ben Hassen-Chehimi & M. Trabelsi-Ayedi

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  1. D. Ben Hassen-Chehimi
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  2. M. Trabelsi-Ayedi
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Ben Hassen-Chehimi, D., Trabelsi-Ayedi, M. Etude de phosphates condenses diagramme d’equilibre du systeme AgPO3−Pr(PO3)3 Données sur AgPr(PO3)4 . Journal of Thermal Analysis 44, 961–967 (1995). https://doi.org/10.1007/BF02547279

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