Zinc Sulfide Precipitation

ZnSO₄ + Na₂S → ZnS↓ + Na₂SO₄

Descripción general

Zinc sulfate reacts with sodium sulfide to form a white precipitate of zinc sulfide (Ksp = 2 × 10⁻²⁵). ZnS occurs naturally as the mineral sphalerite, the most important zinc ore. Zinc sulfide phosphors are used in cathode ray tubes and luminous paints.

Participantes

Rol	Sustancia	Coeficiente	Estado
Reactivo	Zinc Sulfate ZnSO₄	1	(aq)
Producto	Sodium Sulfate Na₂SO₄	1	(aq)

Ejemplo cotidiano

Glow-in-the-dark toys and watch dials often use zinc sulfide phosphors doped with copper, which glow green after light exposure.

Importancia industrial

El ZnS es base de pigmentos fluorescentes, pantallas de televisión de rayos catódicos y detectores de radiación.

Propiedades

Tipo: Precipitation
Reversible: No
Energía: Exotérmico
ΔH: -65,0 kJ/mol

Reacciones relacionadas

Aluminum Hydroxide Precipitation Barium Carbonate Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Fluoride Precipitation (Fluorite) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Lead Chloride Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Zinc Sulfide Precipitation?

The balanced equation is: ZnSO₄ + Na₂S → ZnS↓ + Na₂SO₄.

What type of reaction is Zinc Sulfide Precipitation?

Zinc Sulfide Precipitation is a precipitation reaction.

Is Zinc Sulfide Precipitation exothermic or endothermic?

Zinc Sulfide Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -65.0 kJ/mol.