Calcium Hydroxide and Sulfuric Acid

Ca(OH)₂ + H₂SO₄ → CaSO₄ + 2H₂O

ภาพรวม

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.

ผู้เข้าร่วม

บทบาท	สาร	สัมประสิทธิ์	สถานะ
สารตั้งต้น	Calcium Hydroxide Ca(OH)₂	1	(s)
สารตั้งต้น	Sulfuric Acid H₂SO₄	1	(aq)
ผลิตภัณฑ์	Calcium Sulfate CaSO₄	1	(s)
ผลิตภัณฑ์	Water H₂O	2	(l)

ตัวอย่างในชีวิตประจำวัน

Gypsum board (drywall) used in virtually every modern building is made from calcium sulfate, which can be produced by this type of reaction.

ความสำคัญทางอุตสาหกรรม

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.

คุณสมบัติ

ประเภท: Double Replacement
ย้อนกลับได้: ไม่
พลังงาน: คายความร้อน
ΔH: -109.0 kJ/mol

ปฏิกิริยาที่เกี่ยวข้อง

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) Calcium Carbonate and Hydrochloric Acid Calcium Chloride and Sodium Carbonate Barium Chloride and Sodium Sulfate Precipitation Calcium Hydroxide and Carbon Dioxide (Limewater Test) Sodium Hydroxide and Iron(III) Chloride (Rust Color) Sodium Hydroxide and Hydrochloric Acid Neutralization Potassium Hydroxide and Sulfuric Acid 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.