SINOPHOR® OB-1
Chemical Name：2,2′-(vinylenedi-p-phenylene)bisbenzoxazole;2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole
Synonym:Fluorescent Brightener OB-1;Rylux OB-1;GSTAB OB-1;Fluorescent Brightener 393;FB 393
Cas No.: 1533-45-5
Structure：
Spec:
| Appearance | Bright yellow-green crystalline powder/ yellow powder/ green powder |
| Assay | ≥98% |
| Melting point | 350-355℃ |
| Fineness | ≥200 mesh |
| Ash content | ≤0.1% |
| Maximum absorption wavelength | 374nm |
| Maximum fluorescence emission wavelength | 434nm |
| C.I. NO. | 393 |
Features and uses:
1. It is suitable for the whitening of polyester fiber, nylon fiber, polypropylene fiber and other chemical fibers.
2. Suitable for whitening and brightening of polypropylene plastic, ABS, EVA, polystyrene, polycarbonate, etc.
3. It is suitable for adding in the conventional polymerization of polyester and nylon.
Reference dosage
1. Rigid polyvinyl chloride (PVC):
Brightening: 0.01-0.06% (10g-60g/100kg material)
Transparent: 0.0001-0.001% (0.1g-1g/100kg material)
2. Polystyrene (PS):
Brightening: 0.01-0.05% (10g-50g/100kg material)
Transparent: 0.0001-0.001% (0.1g-1g/100kg material)
3. Polyvinyl chloride (PVC):
Brightening: 10g-50g/100kg material
Transparent: 0.1g-1g/100kg material
Pack：25kg/drum
Storage:Stored in a cool dry place out of direct sunlight.
Details
| Chemical Name | Fluorescent Brightener OB -1 / FB 393 |
|---|---|
| Cas No. | 1533-45-5 |
| Formula | C28H18N2O2 |
| M.W | 414.45 |
| Package | 25kgs/Drum |
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