Calcium Chloride and Sodium Carbonate

CaCl2 + Na2CO3 → CaCO3 + 2NaCl

개요

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.

참여 물질

역할 물질 계수 상태
반응물 Sodium Carbonate Na₂CO₃ 1 (aq)
생성물 Calcium Carbonate CaCO₃ 1 (s)
생성물 Sodium Chloride NaCl 2 (aq)

일상 속 예시

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

산업적 중요성

이 반응은 산업용 연수화, 제지 제조(탄산칼슘 충전재), 그리고 탄산나트륨 생산을 위한 솔베이 공정의 근간입니다.

성질

유형
Double Replacement
가역 반응
아니오
에너지
발열
ΔH
-13.0 kJ/mol

관련 반응

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) Calcium Carbonate and Hydrochloric Acid 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 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.