Reviews by The Headphone Company



Why do Clear Earphone Cables turn Green?

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Often people have asked us why their clear earphone cable turns green, often wondering are they faulty...no, itís simply chemistry Iím afraid!

The element copper undergoes the process of oxidation, if it is exposed to air. Copper metal reacts with oxygen, resulting in the formation of copper oxide which appears green in colour. Copper does not react with water, the outer green layer formed after the oxidation of copper is known as a patina

Unlike other destructive oxidation, the patina acts as a protective layer. This is the reason as to why copper is considered as an important metal, as it is resistant to corrosion. The patina prevents further corrosion of the copper beneath the oxidized layer

An example of a green cable is shown below on these custom in ear monitors, with a clear cable...



Whilst not necessarily being that attractive to the eye, oxidation of your earphone cable does not affect the sound of them. Note also that oxidation occurs regardless of the colour of your cable, so even if the outer part of your cable is black, white, beige or any other colour, the copper on the inside we still turn green, you just canít see it!

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