Optical brightener KSN is a benzoxazole compound, and its appearance is a yellow crystalline powder with a melting point of 271℃, insoluble in water, odorless, and stable in performance. Optical brightener KSN is often used in high grade plastics that require extremely high whiteness.
Product Cate：Optical Brightening Agent For Plastic
Product Name：Optical Brightening Agent KSN
Chemical Name：4.4-bis(5-methyl-2-benzoxoazol)-ethylene
CAS No.：5242-49-9
C.I. No.：368
Molecular Formula：C30H22N2O2
Properties
1. being highly whiteness with small usage.
2. multipurpose used for whitening of polyester fiber and plastic.
3. having a good compatibility and good fastness to light and sublimation. Can be used for high temperature process.
Treating ProcessOverlay plastic:0.5-2g/100kg
Polyester fiber:10-20g
Package20kg cardboard drum
Technical IndexAppearance: greenish yellow powder
Melting process: 300~320°C
Ash content:≤0.5%
Purity:≥99%
Volatile content:≤0.5%
Fineness(300 mesh):100%
Uses：
Optical brightener KSN mainly be used in whitening of polyester, polyamide, polyacrylonitrile fiber, the plastic film and all plastic pressing process. Can suitable for synthesizing high polymer including polymeric process.
