UV Absorbers 928
Basic Information:
Product name:UV Absorbers UV-928
Chemical name: 2- (2 ‘-hydroxyl-3′ -subkil-5′-tertiary phenyl) benzotriazole;
2- (2-2H-benzotriazole) -6- (1-methyl-1-phenyl) ethyl-4- (1133-tetramethylbutyl) phenol;
English name: UV Absorbers 928; 2- (2H-Benzotriazol-2-yl) -6- (1-methyl-1-phenylethyl) -4- (1,1,3,3-tetramethylbutyl) phenol;
CAS number: 73936-91-1
Molecular formula: C29H35N3O
Molecular weight: 441.61
EINECS Number: 422-600-5
Structural formula:
Related categories: chemical intermediates; ultraviolet absorbent; light stabilizer; organic chemical raw materials;
Melting point: 108-112 °C
Boiling point: 555.5±60.0 °C (Predicted)
Density 1.07.
Solubility: soluble in toluene, styrene, cyclohexane, methyl methacrylate, ethyl acetate, ketones, etc., insoluble in water.
Properties: Light yellow crystalline powder
LogP: 7.17
| Specification | Unit | Standard |
| Appearance | Light yellow crystalline powder | |
| Melting point | ℃ | 108.0-112.0 |
| Volatiles | % | ≤0.30 |
| Main content | % | ≥99.00 |
| Ash content | % | ≤0.05 |
| Light transmittance | ||
| 460nm | % | ≥97.00 |
| 500nm | % | ≥98.00 |
UV absorber UV-928 is a benzotriazole UV absorber, capable of absorbing 270-380 nm ultraviolet light, with a peak absorption rate of 303 nm and 345 nm. It has the characteristics of good compatibility, low volatility, good dispersion, low mobility, good thermal stability and high absorption efficiency, and is suitable for high temperature curing system, powder coating and rolling steel coating. Combined with the light stabilizer UV292 and UV123, significantly improve the durability of the coating, and inhibit the coating light loss, discoloration, crack, and delamination.
Mainly used in: automotive coating, coil coating, powder coating.
Recommended amount: 1.0-3.0%, 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
