Chrome Electroplating

Cr³⁺ + 3e⁻ → Cr

Обзор

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.

Участники

Роль	Вещество	Коэффициент	Состояние
Продукт	Chromium Cr	1	(s)

Пример из жизни

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

Промышленное значение

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.

Свойства

Тип: Electrochemical
Обратимая: Да
Энергия: Экзотермическая
ΔH: -215,0 kJ/mol

Связанные реакции

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.