Barium Chloride and Sodium Sulfate Precipitation

BaCl2 + Na2SO4 → BaSO4 + 2NaCl

概要

Barium chloride reacts with sodium sulfate to form an insoluble white precipitate of barium sulfate and sodium chloride. This is the standard qualitative test for sulfate ions in solution. Barium sulfate is extremely insoluble, forming immediately as a dense white precipitate.

参加者

役割 物質 係数 状態
反応物 Sodium Sulfate Na₂SO₄ 1 (aq)
生成物 Barium Sulfate BaSO₄ 1 (s)
生成物 Sodium Chloride NaCl 2 (aq)

日常の例

This precipitation reaction is used in medical imaging, as the barium sulfate produced is the basis for barium meal X-ray contrast agents.

産業上の重要性

分析化学における硫酸イオン検出、医療画像用の硫酸バリウムの製造、そして塗料用顔料(ブランフィックス)として使用されています。

特性

タイプ
Double Replacement
可逆的
いいえ
エネルギー
発熱性
ΔH
-24.5 kJ/mol

関連する反応

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) Calcium Carbonate and Hydrochloric Acid Calcium Chloride and Sodium Carbonate 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 Barium Chloride and Sodium Sulfate Precipitation?
The balanced equation is: BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl.
What type of reaction is Barium Chloride and Sodium Sulfate Precipitation?
Barium Chloride and Sodium Sulfate Precipitation is a double replacement reaction.
Is Barium Chloride and Sodium Sulfate Precipitation exothermic or endothermic?
Barium Chloride and Sodium Sulfate Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -24.5 kJ/mol.