Why are containers for hydrogen peroxide typically colored amber or brown?
Answer
To protect its contents from light
Hydrogen peroxide is a chemical compound that is inherently sensitive to light exposure, a process known as photodecomposition. When exposed to light, the compound breaks down prematurely into water and oxygen gas, reducing its efficacy as an antiseptic or oxidizer. Therefore, to maintain the chemical integrity and intended strength of the product until use, hydrogen peroxide is packaged in opaque or dark-colored bottles, most commonly amber or brown, which act as light shields.
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