Sodium Sulfide and Copper(II) Sulfate

Na2S + CuSO4 → CuS + Na2SO4

अवलोकन

Sodium sulfide reacts with copper(II) sulfate to form a black precipitate of copper(II) sulfide and sodium sulfate. CuS is extremely insoluble, making this a useful test for copper ions. The black precipitate forms instantly upon mixing.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Copper(II) Sulfate CuSO₄ 1 (aq)
उत्पाद Sodium Sulfate Na₂SO₄ 1 (aq)

रोजमर्रा का उदाहरण

The black tarnish on silver jewelry involves a similar sulfide precipitation reaction when silver contacts sulfur-containing substances.

औद्योगिक महत्व

Sulfide precipitation is used in mining wastewater treatment to remove heavy metals. Copper sulfide is also a copper ore mineral.

गुण

प्रकार
Double Replacement
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-84.0 kJ/mol

संबंधित अभिक्रियाएँ

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

Frequently Asked Questions

What is the equation for Sodium Sulfide and Copper(II) Sulfate?
The balanced equation is: Na₂S + CuSO₄ → CuS + Na₂SO₄.
What type of reaction is Sodium Sulfide and Copper(II) Sulfate?
Sodium Sulfide and Copper(II) Sulfate is a double replacement reaction.
Is Sodium Sulfide and Copper(II) Sulfate exothermic or endothermic?
Sodium Sulfide and Copper(II) Sulfate is exothermic (releases energy). The enthalpy change (ΔH) is -84.0 kJ/mol.