The Ternary System H3PO4-Ca(OH)2-H2O Isotherms at 15 and 45 °C

K. Labgairi; A. Jourani; M. Kaddami

doi:10.6000/jascm.v5i2.3897

The Ternary System H3PO4-Ca(OH)2-H2O Isotherms at 15 and 45 °C

Authors

K. Labgairi Laboratory “Physical Chemistry of Processes and Materials”, Faculty of Sciences and Technology, University Hassan 1, BP 577, 2600 Settat
A. Jourani Laboratory “Physical Chemistry of Processes and Materials”, Faculty of Sciences and Technology, University Hassan 1, BP 577, 2600 Settat
M. Kaddami Laboratory “Physical Chemistry of Processes and Materials”, Faculty of Sciences and Technology, University Hassan 1, BP 577, 2600 Settat

DOI:

https://doi.org/10.6000/jascm.v5i2.3897

Keywords:

Solid-liquid phase equilibria, ternary system H3PO4â€“ Ca(OH)2â€“H2O, calcium phosphate, isotherm

Abstract

The solid–iquid phase equilibria of the system H₃PO₄–Ca(OH)₂–H₂O were studied under air pressure using a synthetic method based on conductivity measurements. Two isotherms at 15 and 45 °C were completely defined. The stable solid phases which appear in this range of temperature are hydroxyapatite (Ca₁₀(PO₄)₆(OH)₂), calcium hydrogen phosphate dihydrate (CaHPO₄.2H₂O), calcium hydrogen phosphate anhydrous (CaHPO₄) and calcium dihydrogen phosphate monohydrate (Ca(H₂PO₄)₂.H₂O). These solid phases were characterized using X ray diffraction.

References

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Published

2016-05-30

How to Cite

Labgairi, K., Jourani, A., & Kaddami, M. (2016). The Ternary System H3PO4-Ca(OH)2-H2O Isotherms at 15 and 45 °C. Journal of Applied Solution Chemistry and Modeling, 5(2), 76–81. https://doi.org/10.6000/jascm.v5i2.3897

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Issue

Vol. 5 No. 2 (2016)

Section

General Articles

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