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| Ultraviolet absorbent UV-329 |
Chemical name: 2-(2-Hydroxy-5-methylphenyl)benzotriazole
Molecular formula: C20H25N3O
Molecular weight: 323
CAS NO.:3147-75-9
Chemical structural formula:
Sale code: PS-9
Appearance: white powder
Content: ≥ 99%
Melting point: 80-83°C
Loss on drying: ≤ 0.5%
Ash: ≤ 0.1%
Light transmittance:
Wave length nm |
Light transmittance % |
440 |
≥ 97 |
500 |
≥ 99 |
Toxicity: almost non-toxic,rattus norvegicus oral LD 50 =10g/Kg weight.
Use: This product is mainly used in polyolefine,Polystyrene,organic glass,polycarbonate,ABS and others. Dosage is 0.1-1%.
Solubility: 25°C unit:g/100mLsolvent
solvent |
Benzene |
Styrene |
n-Heptane |
Ethyl acetate |
Alcohol (95%) |
Ethylene glycol |
Water |
Solubility |
39.2 |
33.0 |
7.4 |
21.8 |
0.6 |
0 |
0 |
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