Sulfuric Acid and Calcium Carbonate

H2SO4 + CaCO3 → CaSO4 + H2O + CO2

Übersicht

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.

Teilnehmer

Rolle Substanz Koeffizient Zustand
Reaktant Calcium Carbonate CaCO₃ 1 (s)
Reaktant Sulfuric Acid H₂SO₄ 1 (aq)
Produkt Carbon Dioxide CO₂ 1 (g)
Produkt Water H₂O 1 (l)
Produkt Calcium Sulfate CaSO₄ 1 (s)

Alltägliches Beispiel

Acid rain containing sulfuric acid damages limestone buildings and marble statues through this reaction, causing surface erosion over decades.

Industrielle Bedeutung

This reaction is relevant to acid rain damage assessment, flue gas desulfurization (wet limestone scrubbing), and phosphoric acid production from phosphate rock.

Eigenschaften

Typ
Acid-Base
Reversibel
Nein
Energie
Exotherm
ΔH
-26,0 kJ/mol

Verwandte Reaktionen

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System 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) Formic Acid and Sodium 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.