Chrome Electroplating

Cr³⁺ + 3e⁻ → Cr

ภาพรวม

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.

ผู้เข้าร่วม

บทบาท	สาร	สัมประสิทธิ์	สถานะ
ผลิตภัณฑ์	Chromium Cr	1	(s)

ตัวอย่างในชีวิตประจำวัน

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

ความสำคัญทางอุตสาหกรรม

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.

คุณสมบัติ

ประเภท: Electrochemical
ย้อนกลับได้: ใช่
พลังงาน: คายความร้อน
ΔH: -215.0 kJ/mol

ปฏิกิริยาที่เกี่ยวข้อง

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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.