Sulfuric Acid and Calcium Carbonate
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H2SO4 + CaCO3 → CaSO4 + H2O + CO2
अवलोकन
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.
प्रतिभागी
| भूमिका | पदार्थ | गुणांक | अवस्था |
|---|---|---|---|
| अभिकारक | Calcium Carbonate CaCO₃ | 1 | (s) |
| अभिकारक | Sulfuric Acid H₂SO₄ | 1 | (aq) |
| उत्पाद | Carbon Dioxide CO₂ | 1 | (g) |
| उत्पाद | Water H₂O | 1 | (l) |
| उत्पाद | Calcium Sulfate CaSO₄ | 1 | (s) |
रोजमर्रा का उदाहरण
Acid rain containing sulfuric acid damages limestone buildings and marble statues through this reaction, causing surface erosion over decades.
औद्योगिक महत्व
This reaction is relevant to acid rain damage assessment, flue gas desulfurization (wet limestone scrubbing), and phosphoric acid production from phosphate rock.
गुण
- प्रकार
- Acid-Base
- प्रतिवर्ती
- नहीं
- ऊर्जा
- ऊष्माक्षेपी
- ΔH
- -26.0 kJ/mol