Uv stabilizers absorb most of the UV radiation and convert the absorbed energy into harmless organic compounds released by heat.

There are also 2-hydroxy-4-methoxy-diphenylketone, 2-hydroxy-4-methoxy-2 '-carboxy-diphenylketone, 2, 4-dihydroxy-diphenylketone and 2, 2' -dihydroxy-4-methoxy-diphenylketone.

The first theoretical explanation of fluorescence was in 1852, when Stokes proposed what later became known as Stokes' law. In 1921 Lagorio observed that the visible fluorescence energy emitted by a fluorescent dye was lower than the visible light energy it absorbed, so he reasoned that a fluoresce......

Optical brightener OB-1 china cas no.:1533-45-5 is the most commonly used whitening additive for many plastics, coatings, dyeing and finishing manufacturers. It has the characteristics of small addition amount and obvious whitening effect. Especially in the hands of recyclers of recycled materials, ......

1. Absorption amount and metabolism of fluorescent whitening agent on skin