What compounds, other than silver nitrate, can be broken down by chemical means involving light energy?
Answer:
Hydrogen Peroxide will be decomposed by light, hence the opaque brown bottle it always comes in.
The reaction is:
2HշOշ+Light energy→2HշO+Oշ(g)
or in laymans terms, it breaks down into water and Oxygen gas
1) Polymerize polyolefin with ketone-containing monomers. In the presence of light Norrish-type photochemistry wll degrade the polymer.
2) Polycarbonate polymers undergo the photo-Fries rearrangement to shrink, embrittle, crack, and fail.
3) Dyes bleach in light.
diazo plates 317,000 hits
photoresist 2.92 million hits
photodegradation 573,000 hits
There are an almost endless number of chemicals that are broken down by light.
Some of the most common and light-sensitive are: Ethers, Olefins and Peroxides
Many Biological compounds and Antibiotics are light-sensitive.
Just look into the field of photography and printing and you'll find hundreds of chemicals.
Just walk into any laboratory and you'll see things stored in opaque and amber colored glass, this is to protect from light. Most prescriptions are filled in to amber plastic containers to protect from light.
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