FBA 378 (Optical Brightener FP 127)
PHYSICAL PROPERTIES
| (Item) | (Specification) |
| (Appearance) | (Light yellow powder) |
| (Melting Point, ℃) | 222～226 |
| (Purity, %) | ≥99.0% |
| (Volatile Content, %) | ≤0.5% |
| (Particle Size, ≥325 mesh pass rate) | ≥99.0% |
| (Max. Absorption Wavelength, nm) | 368 ± 2 |
| (Max. Emission Wavelength, nm) | 436 ± 2 |
| (Ash Content, %) | ≤0.5% |
| (Recommended Dosage for PVC, phr) | 0.008～0.025 (Based on 100 parts PVC resin) |
FBA 393 (Optical Brightener OB-1)
PHYSICAL PROPERTIES
| (Item) | (Specification) |
| (Appearance) | (Bright yellow crystalline powder) |
| (Melting Point, ℃) | 352～358 |
| (Purity, %) | ≥99.0% |
| (Volatile Content, %) | ≤0.5% |
| (Particle Size, ≥325 mesh pass rate) | ≥99.0% |
| (Max. Absorption Wavelength, nm) | 374 ± 2 |
| (Max. Emission Wavelength, nm) | 440 ± 2 |
| (Ash Content, %) | ≤0.5% |
| (Recommended Dosage for PVC, phr) | 0.006～0.018 (Based on 100 parts PVC resin) |
