UV Absorber 326
Basic Information:
Product name: UV absorber 326
Chemical name: 2 ′ – (2 ′ -hydroxyl-3 ′ -tert-butyl-5 ′ -methylphenyl) -5-chlorobenzotriazole
English name: UV Absorber 326；
2-(5-Chloro-2H-benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-methylphenol；
CAS number：3896-11-5
Molecular formula：C17H18ClN3O
Molecular weight：315.8
EINECS number：223-445-4
Structural formula:
Related categories:UV absorbent; organic chemical raw materials;photostabilizer;
Melting point: 144-147°C(lit.)
Boiling point: 460.4±55.0°C (Predicted)
Density 1.26±0.1 g/cm3 (Predicted)
Steam pressure: 0 Pa at 20℃
Solubility: Soluble in styrene, benzene, toluene and other solvents, insoluble in water.Soluble in styrene, benzene, toluene and other solvents, insoluble in water.
Properties: Light yellow powder
LogP: 6.580 (est)
| Specification | Unit | Standard |
| Appearance | Light yellow powder | |
| Main content | % | ≥99.00 |
| Volatiles | % | ≤0.50 |
| Ash content | % | ≤0.10 |
| Melting point | ℃ | 137.00-142.00 |
| Light transmittance | ||
| 460nm | % | ≥93.00 |
| 500nm | % | ≥96.00 |
UV326 is a UV absorber of 300-400nm, with good light stabilization effect, converting ultraviolet light into heat energy through photochemical action; the product has more effective absorption of long band, good compatibility with polyolefin, low volatilization and inhibiting phenol ionization; the product has good alkaline resistance and will not cause color change due to metals. Due to its high ionization constant, metal drying agent, catalyst on its low influence; in outdoor products, can be used with phenolic antioxidant and phosphite antioxidant.
It is mainly used in polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, polymethyl methacrylate, polyethylene, ABS resin, epoxy resin and so on.
Recommended amount: 0.1% -1.0%, the specific amount is determined according to the customer application test
Packed in 20 or 25 Kg / carton.
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
