Calcium Hydroxide and Sulfuric Acid
Ca(OH)2 + H2SO4 → CaSO4 + 2H2O
Обзор
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.
Участники
| Роль | Вещество | Коэффициент | Состояние |
|---|---|---|---|
| Реагент | Calcium Hydroxide Ca(OH)₂ | 1 | (s) |
| Реагент | Sulfuric Acid H₂SO₄ | 1 | (aq) |
| Продукт | Calcium Sulfate CaSO₄ | 1 | (s) |
| Продукт | Water H₂O | 2 | (l) |
Пример из жизни
Gypsum board (drywall) used in virtually every modern building is made from calcium sulfate, which can be produced by this type of reaction.
Промышленное значение
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.
Свойства
- Обратимая
- Нет
- Энергия
- Экзотермическая
- ΔH
- -109,0 kJ/mol
Связанные реакции
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.