optical brightener KSN 368

optical brightener KSN 368

Chemical name::4.4- bis (5- methyl -2- benzoxazole) two styrene
Molecular formula: C30H22N2O2
Molecular weight: 442
CAS:5242-49-9
Properties: Fluorescent whitening agent KSN belongs to benzoxazole compounds, its appearance is yellow-green crystalline powder, melting point 278C, insoluble in water, odorless, stable performance.
Technical conditions:
Standard: HG/T 4973-2016
Appearance: yellowish green crystalline powder
Melting point: 275 C 280 - C
Content: more than 99%
Fineness: through 200 mesh
UV absorption: more than 2000
Volatile: less than 1%
Ash: less than 1%
Purpose:
It is used for whitening film of polyester fiber and plastic products, polyamide, polypropylene and other polymer fibers, whitening and brightening of injection molding and extrusion molding materials, especially for high temperature plastics and engineering plastics.
Packaging: 25KG cardboard drum packaging, in a cool, dry place to avoid light preservation.

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