UV Absorber 327
Basic Information:
Product name: UV Absorber 327
Chemical name: 2- (2 ′ -hydroxyl-3 ′, 5 ′ -itute butyl phenyl) -5-chlorobenzo triazole
Synonyms:UV Absorber 327；2-(2′-Hydroxy-3′,5′-di-tert-butylphenyl)-5-chlorobenzotriazole；
CAS number: 3864-99-1
Molecular formula: C20H24ClN3O
Molecular weight: 357.88
EINECS number:223-383-8
Structural formula:
Related categories: Catalysts and additives; plastic additives; ultraviolet absorbers; photostabilizer; organic chemical raw materials;
Melting point:154-158°C (lit.)
Boiling point: 469.2±55.0°C (Predicted)
Density: 1.26 g/cm3
Solubility: soluble in styrene, toluene, cyclohexane, slightly soluble in ethanol, acetone, insoluble in water.
Properties: White or off- white powder
LogP: 18.832(est)
Acidity coefficient (pK a): 9.23 ± 0.48 (Predicted)
Stability: photosensitive
| Specification | Unit | Standard |
| Appearance | White or off- white powder | |
| Main content | % | ≥99.00 |
| Melting point | ℃ | 48.0-53.0 |
| Volatiles | % | ≤0.50 |
| Light transmittance： | ||
| 460nm | % | ≥98.00 |
| 500nm | % | ≥99.00 |
UV327 can strongly absorb 300-400nm ultraviolet light, good chemical stability, low volatility, good compatibility with polyolefin, low volatile, low toxicity, nonflammable, no corrosion, good storage stability, and significant synergy with DLTDP (PS800). It is especially suitable for polymers that are very sensitive to long wavelength ultraviolet radiation (e. g., polyimidites, polyphenyl sulfide) and applications that require low transmittance to long wavelength ultraviolet radiation (e. g., optical lens).
It is mainly used in polyvinyl chloride, polystyrene, unsaturated resin, polyurethane, polymethyl methacrylate, polyethylene, ABS resin, polypropylene fiber, paint, coloring agent, adhesives and other polymers and many other fields.
Packed in 20 or 25 Kg / carton. Or packed as per customers requirements.
Store in a cool, dry and ventilated place; avoid direct sunlight.
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New Venture Enterprise is dedicated to providing high-quality light stabilizers to meet the diverse needs of these industries, driving innovation and sustainability in product development, please contact us:
Email: nvchem@hotmail.com
