Product Details
Chemical formula: C26H26N2O2 CAS number: 27344-41-8 Molecular weight: 398.50 Appearance: light yellow crystalline powder Melting point: 180-182°C Solubility: insoluble in water, soluble in organic solvents Application: COB-351 is compatible with various polymers, including polyvinyl chloride (PVC), polyethylene (PE) and polyester (PET). It can be used in the manufacture of textiles, detergents, plastics, paper and other industries that need to improve whiteness and brightness.benefit
High Efficiency: COB-351 provides excellent whitening effect at low dosage, saving cost and reducing environmental impact. Excellent compatibility: The fluorescent whitening agent exhibits excellent compatibility with different polymers and can be easily added during production. Good resistance: COB-351 is resistant to heat, light and chemicals, ensuring long-lasting brightness even under harsh conditions. Safety and environmental protection: Our products do not contain harmful substances such as APEO and heavy metals, promoting a safe and sustainable production process.Specification
| Appearance | Yellow-green homogeneous powder | Conform |
| Maximum absorption wavelength (nm) | 349±1 | 348 |
| Ultraviolet absorptionfluctuation range | 1120±15 | 1120 |
| Moisture and volatiles (%) | ≤3.5 | 1.90 |
| Appearance | Yellow-green homogeneous powder | Conform |
| Maximum absorption wavelength (nm) | 349±1 | 348 |