Anode
| Formula / Notation | Red → Ox + ne⁻ |
|---|---|
| Also Known As | Positive electrode (electrolytic cell), oxidation electrode |
What is Anode?
The anode is the electrode at which oxidation occurs in an electrochemical cell. In an electrolytic cell, the anode is connected to the positive terminal of the power source; in a galvanic cell, the anode is the negative electrode. Anions migrate towards the anode during electrolysis, where they lose electrons.
Formula & Notation
Other Names / Synonyms: Positive electrode (electrolytic cell), oxidation electrode
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The anode is the electrode at which oxidation occurs in an electrochemical cell. In an electrolytic cell, the anode is connected to the positive terminal of the power source; in a galvanic cell, the anode is the negative electrode. Anions migrate towards the anode during electrolysis, where they lose electrons.
Anodes are critical in electrolysis (chlor-alkali process, aluminium smelting, copper refining), electroplating, fuel cells, and batteries. Sacrificial anodes of zinc or magnesium protect steel structures (ships, pipelines) from corrosion via cathodic protection.
Anodes in industrial electrolysis produce hazardous gases (chlorine, fluorine, oxygen). Adequate ventilation is mandatory. Graphite anode dust is a respiratory irritant. Sacrificial anode materials (zinc, magnesium) present environmental hazards if improperly disposed.
The formula or notation for Anode is: Red → Ox + ne⁻