Thermal Decomposition of Magnesium Carbonate

MgCO3 → MgO + CO2

概述

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.

参与者

角色 物质 系数 状态
产物 Magnesium Oxide MgO 1 (s)
产物 Carbon Dioxide CO₂ 1 (g)

日常示例

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

工业重要性

热分解生产的氧化镁（方镁石）是重要的耐火材料，用于冶金炉衬、水泥工业和电子工业绝缘材料。

属性

类型
Decomposition
可逆
否
能量
吸热
ΔH
100.6 kJ/mol

相关反应

Decomposition of Ammonium Nitrate Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Iron(II,III) Oxide (Direct Reduction) Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Cracking of Octane (Thermal Cracking)

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.