Barium Chloride and Sodium Sulfate Precipitation

BaCl2 + Na2SO4 → BaSO4 + 2NaCl

概述

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.

参与者

角色 物质 系数 状态
反应物 Sodium Sulfate Na₂SO₄ 1 (aq)
产物 Barium Sulfate BaSO₄ 1 (s)
产物 Sodium Chloride NaCl 2 (aq)

日常示例

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

工业重要性

用于分析化学中硫酸根检测、医学成像用硫酸钡的生产,以及作为油漆颜料(永固白)。

属性

类型
Double Replacement
可逆
否
能量
放热
ΔH
-24.5 kJ/mol

相关反应

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.