Specifications
| Product Name | Optical Brightener OB-1 |
| Chemical Name | 2.2’-(4.4’-diphenol vinyl) dibenzoxazol |
| CAS No. | 1533-45-5 |
| C.I. No. | 393 |
| Structural Formula |  |
| Molecular Formula | C28H18N2O2 |
| Molecular Weight | 414 |
| Technical Index | Appearance：Yellowish/greenish crystal powder
Molecular weight:414.4 Melting Point:356℃～360℃ Purity: ≥98.5% Fineness: ≧200 mesh Volatile content: ≦0.5% Ash content :≦0.5% |
| Uses | Mainly be used in whitening of polyester and plastic, as well in
whitening of Nylon during polymerization. For whitening of polyester and nylon; also used in ABS, PS,PVC, HIPS, PA, PC, PP, PE,PET,EVA, PVC, etc. Rate of use: (per 1000kg of substrate) Polyester: 75-300g EVA, PP, nylon: 75-200g |
| Package | 25kg per fiber drum |
