Calcium Hydroxide and Sulfuric Acid
Ca(OH)2 + H2SO4 → CaSO4 + 2H2O
Tổng quan
Calcium hydroxide reacts with sulfuric acid to form calcium sulfate and water. The product calcium sulfate is a sparingly soluble salt that partially precipitates. This reaction produces gypsum (calcium sulfate dihydrate), one of the most important construction materials.
Người tham gia
| Vai trò | Chất | Hệ số | Trạng thái |
|---|---|---|---|
| Chất phản ứng | Calcium Hydroxide Ca(OH)₂ | 1 | (s) |
| Chất phản ứng | Sulfuric Acid H₂SO₄ | 1 | (aq) |
| Sản phẩm | Calcium Sulfate CaSO₄ | 1 | (s) |
| Sản phẩm | Water H₂O | 2 | (l) |
Ví dụ thực tế
Gypsum board (drywall) used in virtually every modern building is made from calcium sulfate, which can be produced by this type of reaction.
Tầm quan trọng công nghiệp
Calcium sulfate (gypsum) is used in drywall, plaster, cement retarder, and as a food additive. Flue gas desulfurization uses lime to react with SO2, producing gypsum as a byproduct.
Tính chất
- Loại
- Double Replacement
- Thuận nghịch
- Không
- Năng lượng
- Tỏa nhiệt
- ΔH
- -109,0 kJ/mol
Phản ứng liên quan
Iron(III) Chloride and Sodium Hydroxide
Calcium Chloride and Sodium Carbonate
Barium Chloride and Sodium Sulfate Precipitation
Calcium Hydroxide and Carbon Dioxide (Limewater Test)
Magnesium Hydroxide and Hydrochloric Acid (Antacid)
Lead Nitrate and Potassium Iodide (Golden Rain)
Copper(II) Sulfate and Sodium Hydroxide
Sodium Hydroxide and Iron(III) Chloride (Rust Color)
Sodium Hydroxide and Hydrochloric Acid Neutralization
Aluminum Hydroxide and Hydrochloric Acid
Frequently Asked Questions
What is the equation for Calcium Hydroxide and Sulfuric Acid?
The balanced equation is: Ca(OH)₂ + H₂SO₄ → CaSO₄ + 2H₂O.
What type of reaction is Calcium Hydroxide and Sulfuric Acid?
Calcium Hydroxide and Sulfuric Acid is a double replacement reaction.
Is Calcium Hydroxide and Sulfuric Acid exothermic or endothermic?
Calcium Hydroxide and Sulfuric Acid is exothermic (releases energy). The enthalpy change (ΔH) is -109.0 kJ/mol.