Thermal Decomposition of Magnesium Carbonate

MgCO3 → MgO + CO2

概要

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.

参加者

役割 物質 係数 状態
生成物 Magnesium Oxide MgO 1 (s)
生成物 Carbon Dioxide CO₂ 1 (g)

日常の例

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

産業上の重要性

この分解で生成される酸化マグネシウムは炉内張りの耐火物、医薬品（制酸剤）、マグネシウム金属の製造に使用される。

特性

タイプ
Decomposition
可逆的
いいえ
エネルギー
吸熱性
ΔH
100.6 kJ/mol

関連する反応

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.