Copper(II) Sulfate and Sodium Hydroxide

CuSO₄ + 2NaOH → Cu(OH)₂ + Na₂SO₄

Aperçu

Blue copper(II) sulfate solution reacts with sodium hydroxide to form a pale blue gelatinous precipitate of copper(II) hydroxide and sodium sulfate solution. This is a common qualitative test for copper(II) ions and is used in the Biuret test for proteins.

Participants

Rôle	Substance	Coefficient	État
Réactif	Copper(II) Sulfate CuSO₄	1	(aq)
Réactif	Sodium Hydroxide NaOH	2	(aq)
Produit	Sodium Sulfate Na₂SO₄	1	(aq)

Exemple du quotidien

The Biuret test for proteins uses copper sulfate and sodium hydroxide; the formation of a violet color (rather than pale blue precipitate) indicates protein presence.

Importance industrielle

Copper hydroxide is used as a fungicide in agriculture (Bordeaux mixture) and as a starting material for other copper compounds.

Propriétés

Type: Double Replacement
Réversible: Non
Énergie: Exothermique
ΔH: -59,0 kJ/mol

Réactions associées

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 Copper(II) Sulfate and Sodium Hydroxide?

The balanced equation is: CuSO₄ + 2NaOH → Cu(OH)₂ + Na₂SO₄.

What type of reaction is Copper(II) Sulfate and Sodium Hydroxide?

Copper(II) Sulfate and Sodium Hydroxide is a double replacement reaction.

Is Copper(II) Sulfate and Sodium Hydroxide exothermic or endothermic?

Copper(II) Sulfate and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -59.0 kJ/mol.