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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.