Barium Chloride and Sodium Sulfate Precipitation

BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl

Tổng quan

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.

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Sodium Sulfate Na₂SO₄	1	(aq)
Sản phẩm	Barium Sulfate BaSO₄	1	(s)
Sản phẩm	Sodium Chloride NaCl	2	(aq)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Used in analytical chemistry for sulfate testing, in the production of barium sulfate for medical imaging, and as a paint pigment (blanc fixe).

Tính chất

Loại: Double Replacement
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -24,5 kJ/mol

Phản ứng liên quan

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.