Chemical name: 2,2'-(4,4'-diphenol vinyl)dibenzoxazol
Structural formula:
C.I. NO.:
Fluorescent brightener 398
CAS NO.:1533-45-5
EC NO.:216-245-3
Molecular formula: C28H18N2O2
Molecular weight: 414
Properties: The product is yellow crystal powder .Its melting point is 353°C, insoluble in water, no odor,stable property,the maximum absorption wavelength is 374nm,it has strong fluorescence,fluorescence emission wavelength is 434nm.
Technical conditions:
Appearance: yellow crystal power
Chromatic light: bright-colored blue with white light (similar to the standard product)
Melting point: 351-353°C
Content of solid: ≥99.5%
Fineness : through 100 meshes
Use: It is mainly used in whitening of original polyester liquid , especially for dacron fibre ,cotton , fabric blend ,and also for plastic products.
Package: 10KG cardboard drum or according to the requirement of the user.
