Calcium Chloride and Sodium Carbonate

CaCl₂ + Na₂CO₃ → CaCO₃ + 2NaCl

ภาพรวม

Calcium chloride reacts with sodium carbonate to form insoluble calcium carbonate precipitate and sodium chloride. This is the basis of the water softening process where dissolved calcium ions are removed as insoluble carbonate. The white precipitate settles as chalk-like material.

ผู้เข้าร่วม

บทบาท	สาร	สัมประสิทธิ์	สถานะ
สารตั้งต้น	Sodium Carbonate Na₂CO₃	1	(aq)
ผลิตภัณฑ์	Calcium Carbonate CaCO₃	1	(s)
ผลิตภัณฑ์	Sodium Chloride NaCl	2	(aq)

ตัวอย่างในชีวิตประจำวัน

Water softening systems in homes remove calcium hardness by precipitating calcium carbonate, reducing limescale buildup in pipes and appliances.

ความสำคัญทางอุตสาหกรรม

This reaction is fundamental to industrial water softening, paper manufacturing (calcium carbonate filler), and the Solvay process for sodium carbonate production.

คุณสมบัติ

ประเภท: Double Replacement
ย้อนกลับได้: ไม่
พลังงาน: คายความร้อน
ΔH: -13.0 kJ/mol

ปฏิกิริยาที่เกี่ยวข้อง

Iron(III) Chloride and Sodium Hydroxide 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 Sodium Carbonate and Hydrochloric Acid Aluminum Hydroxide and Hydrochloric Acid

Frequently Asked Questions

What is the equation for Calcium Chloride and Sodium Carbonate?

The balanced equation is: CaCl₂ + Na₂CO₃ → CaCO₃ + 2NaCl.

What type of reaction is Calcium Chloride and Sodium Carbonate?

Calcium Chloride and Sodium Carbonate is a double replacement reaction.

Is Calcium Chloride and Sodium Carbonate exothermic or endothermic?

Calcium Chloride and Sodium Carbonate is exothermic (releases energy). The enthalpy change (ΔH) is -13.0 kJ/mol.