Sulfuric Acid and Calcium Carbonate
H2SO4 + CaCO3 → CaSO4 + H2O + CO2
概述
Sulfuric acid reacts with calcium carbonate to form calcium sulfate, water, and carbon dioxide. Unlike HCl, this reaction can be self-limiting because the insoluble calcium sulfate coats the limestone surface, slowing further reaction. This is why HCl is preferred over H₂SO₄ for dissolving limestone.
参与者
| 角色 | 物质 | 系数 | 状态 |
|---|---|---|---|
| 反应物 | Sulfuric Acid H₂SO₄ | 1 | (aq) |
| 反应物 | Calcium Carbonate CaCO₃ | 1 | (s) |
| 产物 | Calcium Sulfate CaSO₄ | 1 | (s) |
| 产物 | Water H₂O | 1 | (l) |
| 产物 | Carbon Dioxide CO₂ | 1 | (g) |
日常示例
Acid rain containing sulfuric acid damages limestone buildings and marble statues through this reaction, causing surface erosion over decades.
工业重要性
该反应对酸雨危害评估、文物古迹保护和工业脱硫工艺（石灰石-石膏湿法脱硫）研究具有重要意义。
属性
- 类型
- Acid-Base
- 可逆
- 否
- 能量
- 放热
- ΔH
- -26.0 kJ/mol
相关反应
Acetic Acid Dissociation in Water
Ammonia and Hydrochloric Acid
Ascorbic Acid and Sodium Hydroxide
Barium Hydroxide and Ammonium Thiocyanate (Endothermic)
Carbonic Acid and Sodium Hydroxide
Aluminum Hydroxide as Amphoteric Acid with NaOH
Aluminum Chloride and Chloride Ion (Lewis Acid-Base)
Hydrochloric Acid and Sodium Hydroxide Neutralization
Nitric Acid and Potassium Hydroxide Neutralization
Hydrochloric Acid and Barium Hydroxide
Frequently Asked Questions
What is the equation for Sulfuric Acid and Calcium Carbonate?
The balanced equation is: H₂SO₄ + CaCO₃ → CaSO₄ + H₂O + CO₂.
What type of reaction is Sulfuric Acid and Calcium Carbonate?
Sulfuric Acid and Calcium Carbonate is a acid-base reaction.
Is Sulfuric Acid and Calcium Carbonate exothermic or endothermic?
Sulfuric Acid and Calcium Carbonate is exothermic (releases energy). The enthalpy change (ΔH) is -26.0 kJ/mol.