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Juliette [100K]
3 years ago
7

Why does paper "brown" after a while?

Chemistry
1 answer:
ElenaW [278]3 years ago
5 0

Answer:

Exposure to oxygen (especially when combined with sunlight) alters the molecular structure of lignin, causing a change in how the compound absorbs and reflects light, resulting in the substance containing oxidized lignin turning a yellow-brown color in the human visual spectrum.

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