Optical brightener KSB (FBA 369)

Chemical name: Optical Brightener KSB (FBA 369)

1, 4-2 (5 – methyl – 2 – benzene and imidazolyl) naphthalene


Molecular formula: C26H18N2O2

Molecular weight: 390


Appearance bright yellow green powder
Content ≥98%
Melting point 237℃—239℃ 
Colored light bright blue white color
Volatile matter ≤0.5%
Purity ≥98%
Particle size ≥100

Properties: The product is light yellow green powder with no toxic and no smell, insoluble in water, soluble in most organic solvent.

It has the advantages of less dosage and high brightening effect. It has fine consistency, light fastness and heat resistance.

Application: mainly for the brightening of synthetic fiber and plastic products.

Packing: 25 kg cartons, paper bucket, paper bags. or according to customer requirements.

Product picture: 


Company Info

Henan Wising Chem Co., Ltd