3,3-Diphenyl-3H-benzo[f]chromene CAS 4222-20-2

Specification

Application

It is used as photochromic dye, which is a series, they are special small molecular materials which change color under ultraviolet light. These dyes also change color excellently under the sun. Its mechanism of color-change stems from the fact that the dye is excited by ultraviolet light, the molecular structure changes, thus resulting in color changes, and when ultraviolet light is removed, the molecular structure of the dye returns to its original colorless state. Photochromic dye are available in a variety of colors, such as purple, blue, yellow, pink, green, and so on, which can be mixed with different color dyes to effect more diverse color changes, such as red, brown, gray.

Packing and Storage

Packing    In 25kgs net cardboard drum, or smal packages as required.

Storage    Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

Safety Information

Non-hazardous for air, sea and road freight.