Cadmium Sulfide Precipitation (Yellow)

CdCl₂ + Na₂S → CdS↓ + 2NaCl

Ikhtisar

Cadmium chloride reacts with sodium sulfide to form a bright yellow precipitate of cadmium sulfide (Ksp = 8 × 10⁻²⁷). CdS is known as cadmium yellow and was historically an important artist's pigment. The brilliant yellow color is due to its 2.4 eV bandgap.

Peserta

Peran	Zat	Koefisien	Keadaan
Produk	Sodium Chloride NaCl	2	(aq)

Contoh Sehari-hari

Many of Claude Monet's and Vincent van Gogh's paintings feature cadmium yellow pigment, prized for its brilliance and light-fastness.

Pentingnya dalam Industri

CdS is used as a pigment, in photocells and light meters, in thin-film solar cells (CdTe/CdS), and as a quantum dot material.

Sifat

Jenis: Precipitation
Dapat Dibalik: Tidak
Energi: Eksoterm
ΔH: -78,0 kJ/mol

Reaksi Terkait

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

Frequently Asked Questions

What is the equation for Cadmium Sulfide Precipitation (Yellow)?

The balanced equation is: CdCl₂ + Na₂S → CdS↓ + 2NaCl.

What type of reaction is Cadmium Sulfide Precipitation (Yellow)?

Cadmium Sulfide Precipitation (Yellow) is a precipitation reaction.

Is Cadmium Sulfide Precipitation (Yellow) exothermic or endothermic?

Cadmium Sulfide Precipitation (Yellow) is exothermic (releases energy). The enthalpy change (ΔH) is -78.0 kJ/mol.