Thermal Decomposition of Magnesium Carbonate

MgCO3 → MgO + CO2

Visão geral

Magnesium carbonate decomposes when heated above 350 C to form magnesium oxide and carbon dioxide. This reaction occurs at a lower temperature than calcium carbonate decomposition because magnesium carbonate is less thermally stable. It is used in the production of magnesia for refractory applications.

Participantes

Papel Substância Coeficiente Estado
Produto Magnesium Oxide MgO 1 (s)
Produto Carbon Dioxide CO₂ 1 (g)

Exemplo do cotidiano

Gymnasts and rock climbers use magnesium carbonate (chalk) on their hands, which is produced and processed using knowledge of this decomposition.

Importância industrial

O óxido de magnésio produzido por esta decomposição é utilizado como material refratário em revestimentos de fornos, como medicamento (antiácido) e na produção de magnésio metálico.

Propriedades

Tipo
Decomposition
Reversível
Não
Energia
Endotérmico
ΔH
100,6 kJ/mol

Reações relacionadas

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Frequently Asked Questions

What is the equation for Thermal Decomposition of Magnesium Carbonate?
The balanced equation is: MgCO₃ → MgO + CO₂.
What type of reaction is Thermal Decomposition of Magnesium Carbonate?
Thermal Decomposition of Magnesium Carbonate is a decomposition reaction.
Is Thermal Decomposition of Magnesium Carbonate exothermic or endothermic?
Thermal Decomposition of Magnesium Carbonate is endothermic (absorbs energy). The enthalpy change (ΔH) is 100.6 kJ/mol.