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Factory wholesale Optical Brightener 393 - Optical Brightener OB-1 for PVC – DEBORN Detail:
| Chemical name |
2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole |
| Molecular formula |
C28H18N2O2 |
| Molecular weight |
414.4 |
| CAS NO. |
1533-45-5 |
Chemical structure

Specification
| Appearance |
Yellowish green powder |
| Assay |
98% min |
| Melting Point |
357~361°C |
| Volatiles Content |
0.5% max |
| Ash content |
0.5%max |
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%).
Package and Storage
Net 25kg/full-paper drum
Store the product in a cool, dry, well-ventilated area away from incompatible materials.
Product detail pictures:
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Our rewards are reduce selling prices,dynamic revenue team,specialized QC,sturdy factories,superior quality services for Factory wholesale Optical Brightener 393 - Optical Brightener OB-1 for PVC – DEBORN , The product will supply to all over the world, such as: Philippines, Lisbon, Florence, We follow superior mechanism to process these goods that ensure optimum durability and reliability of the goods. We follow latest effective washing and straightening processes that enable us to supply unmatched quality of items for our clients. We continually strive for perfection and all our efforts are directed towards attaining complete client satisfaction.