Chrome Electroplating

Cr³⁺ + 3e⁻ → Cr

Ikhtisar

Chromium plating deposits a thin layer of chromium from a chromic acid or trivalent chromium bath. Decorative chrome is only 0.25–0.5 μm thick over a nickel undercoat, while hard chrome (industrial) is 20–250 μm thick. Chrome provides exceptional hardness (68–72 HRC), corrosion resistance, and a mirror-like finish.

Peserta

Peran	Zat	Koefisien	Keadaan
Produk	Chromium Cr	1	(s)

Contoh Sehari-hari

The shiny chrome trim on cars, bathroom fixtures, and kitchen appliances is applied by this electroplating process.

Pentingnya dalam Industri

Chrome plating is essential for automotive trim, hydraulic cylinders, piston rings, and industrial rollers. Environmental regulations are driving a shift from hexavalent to trivalent chrome.

Sifat

Jenis: Electrochemical
Dapat Dibalik: Ya
Energi: Eksoterm
ΔH: -215,0 kJ/mol

Reaksi Terkait

Electrolysis of Water Electrolytic Production of Chlorate Electrorefining of Copper Alkaline Battery Discharge Anodizing of Aluminum Cathodic Protection (Zinc Sacrificial Anode) Chlor-Alkali Electrolysis Nickel-Metal Hydride Battery Sodium-Sulfur Battery Electrochemical CO₂ Reduction to CO

Frequently Asked Questions

What is the equation for Chrome Electroplating?

The balanced equation is: Cr³⁺ + 3e⁻ → Cr.

What type of reaction is Chrome Electroplating?

Chrome Electroplating is a electrochemical reaction. It is reversible under certain conditions.

Is Chrome Electroplating exothermic or endothermic?

Chrome Electroplating is exothermic (releases energy). The enthalpy change (ΔH) is -215.0 kJ/mol.