Chemical Name:
2,2′-(vinylenedi-p-phenylene)bisbenzoxazole
| Formula | C28H18N2O2 |
|
| MW | 414 | |
| CAS# | 1533-45-5 |
Synonym name:
Fluorescent Brightener 393 (FB 393 ) , C.I.393, Fluorescent Brightener OB-1, Eastobrite OB-1
Specification:
| Appearance | yellowish or greenish powder, two color shades |
| Melting point | 357-359℃ |
| Solubility | (g/100 g solution) at 20° C: |
| Acetone | ＜0.1 |
| Chloroform | ＜0.1 |
| Hexane | ＜0.1 |
| Methanol | ＜0.1 |
| Water | ＜0.1 |
Application:
Optical Brightener OB-1 has low volatility and excellent heat resistance which make the product ideal for use in fibers and in engineering plastics processed at high temperatures.
Optical Brightener OB-1 has two colors shades, greenish and yellowish color shade.
>Recommended concentrations：0.005-0.2% depending on the application and degree of desired whiteness.
Package:
25kg per fiber drum with PE liner, 6*2 layer 12 drums per pallet, 5 CBM per ton, or according to customers’ requirements.
