Chemical Name 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole
Molecular Formula       C7H5O4SNa
Molecular Weight         414.4
Structure         

CAS Number    1533-45-5
 
Specification     Appearance:       Yellowish green powder
                    Melting point:        357~361°C
                    Assay:       98%
                    Volatiles Content    0.5%max
                    Ash content:          0.50%max
 
Packing            25 kg / PE drum
 
Applications 

1. Suitable for polyester fiber (PSF), nylon fiber and chemical fiber whitening.
2. Applicable to PP, PVC, ABS, PA, PS, PC, PBT plastic whitening brightening, with excellent whitening effect.
3. Suitable for whitening agent concentrated masterbatch added (such as: LDPE color concentrate)

 
Recommended dosage: every 1000Kg polymer added amount of Optical brightener OB-1:

1. polyester fiber  75-300g.(75-300ppm)
2. Rigid PVC ,PP, ABS, Nylon, PC  20-50g.(20-50ppm).
3. whitening concentrated masterbatch 5-7kg.(0.5-0.7%).