Optical brighteners are compounds that absorb light in the violet or ultraviolet region of the electromagnetic spectrum and reemit it in the blue region, by a process known as fluorescence. Optical brighteners are also referred to as fluorescent whitening agents or fluorescent brightening agents. Optical brighteners possess properties such as are whiteness and brightness, light […]
from LinkeWire http://bit.ly/2HQEn2m
from LinkeWire http://bit.ly/2HQEn2m
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