Activation energies of thermal decomposition processes of MgBr2.6H2O

Yoram Kirsh; Shlomo Shoval; Shmuel Yariv

doi:10.1016/0040-6031(89)85216-5

Activation energies of thermal decomposition processes of MgBr₂.6H₂O

Yoram Kirsh, Shlomo Shoval, Shmuel Yariv

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Abstract

The activation energies of thermal decomposition processes of MgBr₂.6H₂O were studied by applying Kissinger's method to DTA and DTG curves. The activation energy of dehydration appeared to be higher for the hexahydrate (43 kcal.mole^-1, or 180 kJ.mole^-1) than for the dihydrate (31.5 kcal.mole^-1, or 132 kJ.mole^-1). This may be attributed to the fact that the large [Mg(H₂O)₆]²⁺ cation is more stable in the Br^- sub-lattice than the relatively small [Mg(H₂O)₂]²⁺ cation.

Original language	English
Pages (from-to)	197-203
Number of pages	7
Journal	Thermochimica Acta
Volume	148
Issue number	C
DOIs	https://doi.org/10.1016/0040-6031(89)85216-5
State	Published - 4 Aug 1989

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title = "Activation energies of thermal decomposition processes of MgBr2.6H2O",

abstract = "The activation energies of thermal decomposition processes of MgBr2.6H2O were studied by applying Kissinger's method to DTA and DTG curves. The activation energy of dehydration appeared to be higher for the hexahydrate (43 kcal.mole-1, or 180 kJ.mole-1) than for the dihydrate (31.5 kcal.mole-1, or 132 kJ.mole-1). This may be attributed to the fact that the large [Mg(H2O)6]2+ cation is more stable in the Br- sub-lattice than the relatively small [Mg(H2O)2]2+ cation.",

author = "Yoram Kirsh and Shlomo Shoval and Shmuel Yariv",

year = "1989",

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AU - Kirsh, Yoram

AU - Shoval, Shlomo

AU - Yariv, Shmuel

PY - 1989/8/4

Y1 - 1989/8/4

N2 - The activation energies of thermal decomposition processes of MgBr2.6H2O were studied by applying Kissinger's method to DTA and DTG curves. The activation energy of dehydration appeared to be higher for the hexahydrate (43 kcal.mole-1, or 180 kJ.mole-1) than for the dihydrate (31.5 kcal.mole-1, or 132 kJ.mole-1). This may be attributed to the fact that the large [Mg(H2O)6]2+ cation is more stable in the Br- sub-lattice than the relatively small [Mg(H2O)2]2+ cation.

AB - The activation energies of thermal decomposition processes of MgBr2.6H2O were studied by applying Kissinger's method to DTA and DTG curves. The activation energy of dehydration appeared to be higher for the hexahydrate (43 kcal.mole-1, or 180 kJ.mole-1) than for the dihydrate (31.5 kcal.mole-1, or 132 kJ.mole-1). This may be attributed to the fact that the large [Mg(H2O)6]2+ cation is more stable in the Br- sub-lattice than the relatively small [Mg(H2O)2]2+ cation.

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JF - Thermochimica Acta

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Activation energies of thermal decomposition processes of MgBr₂.6H₂O

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