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Dergiler / Eurasian Journal of Biological and Chemical Sciences / 2019 / Cilt: 2 - Sayı: 2

Thermal kinetics and thermodynamics of the dehydration reaction of Mg3(PO4)2·22H2O

Fatma Tuğçe ŞENBERBER
Emek MÖRÖYDOR DERUN
Sayfa
47–51
Yayın Tarihi
2019-12-06
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

The thermodynamic functions (ΔH, ΔG and ΔS) of the dehydration reaction were calculated by the activated complex theory and found that the process was endothermic, non-spontaneous and fast.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Mg3(PO4)2·22H2O lost its crystal water in the temperature range of 40 - 200°C and the calcined sample was identified as Mg3(PO4)2, was a notable for its further treatments in optical and electrical applications.
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Temel Bulgular & Veri:The activation energies calculated for the dehydration reaction; and average of activation energy was found as 160 kJ/mol.
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Sonuç & Katkı:The thermodynamic functions (ΔH, ΔG and ΔS) of the dehydration reaction were calculated by the activated complex theory and found that the process was endothermic, non-spontaneous and fast.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Magnesium phosphate · decomposition kinetic · thermal behaviour

Abstract

Mg3(PO4)2·22H2O lost its crystal water in the temperature range of 40 - 200°C and the calcined sample was identified as Mg3(PO4)2, was a notable for its further treatments in optical and electrical applications. Dehydration process was studied using non-isothermal thermogravimetry (TG) applying model-fitting method. Different mechanism models (chemical reaction order, diffusion and phase interfacial reaction) were applied. The activation energies calculated for the dehydration reaction; and average of activation energy was found as 160 kJ/mol. The better kinetic model of the dehydration reaction for Mg3(PO4)2·22H2O was selected as F3 (chemical reaction - third order). The thermodynamic functions (ΔH, ΔG and ΔS) of the dehydration reaction were calculated by the activated complex theory and found that the process was endothermic, non-spontaneous and fast.

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Bu Makaleye Atıf Yap

ŞENBERBER, F. T., DERUN, E. M. (2019). Thermal kinetics and thermodynamics of the dehydration reaction of Mg3(PO4)2·22H2O. Eurasian Journal of Biological and Chemical Sciences, Cilt: 2 - Sayı: 2, 47–51. https://ajindex.com/articles/756014

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Kaynakça (9)

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