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2006-08-03 18:37:14 · 2 answers · asked by Ricky J. 6 in Science & Mathematics ➔ Chemistry
And no more answers from Prateek until he lays off the booze. Serious answers only please.
2006-08-03 19:03:10 · update #1
Many UV protectants use an oil base to fight against sweat, swimming, etc. Generally it is the oil that stains your clothes.
Clear UV protectants work by converting the UV light into a lower wavelength (infrared = heat) through chemical conversion. They use the UV light to change their molecules and thus absorb the UV.
White UV protectants typically use Zinc, or sometimes Aluminum... the latter being absolutely bad for your skin. Zinc reflects the UV light rather than absorbing it.
2006-08-03 20:05:00 · answer #1 · answered by Danny R 1 · 1⤊ 0⤋
Stain means covering with some dirty thing and coming to ULTRAVIOLET PROTECTANTS, they causes sunburn and sometimes cancer. We r protected from the UV rays because og the ozone layer present in the atmosphere. Ozone is nothing but a form of oxygen in which every molecule of Oxygen has 3 atoms instead of two. But due to chlorofluoro carbons released from refrigerators and aeroplanes it is being damaged.
2006-08-03 18:53:40 · answer #2 · answered by Prateek K 2 · 0⤊ 0⤋