Uv-329

1. Chemical name: 2 - (2 '- hydroxy 5' - tert octylphenyl) benzotriazole

2. Molecular formula: C20H25N3O

3. Molecular weight: 323

4、CAS NO.：3147-75-9

5. Chemical structural formula:

6. Appearance: white powder

7. Content: ≥ 99%

8. Melting point: 101-106 ℃

9. Loss on drying: ≤ 0.5%

10. Ash content: ≤ 0.1%

11. Light transmittance:

Wavelength NM	Light transmittance%
440	≥ 97
500	≥ 98

12. Toxicity: basically non-toxic. Oral LD 50 of rats = 10g / kg body weight.

13. Usage: as an ultraviolet absorber, this product is mainly suitable for polyolefin, polystyrene, plexiglass, polycarbonate, ABS resin, etc. The dosage is generally 0.1-1%.

14. Solubility: 25 ℃, unit: g / 100ml solvent

Properties

UV-329 is widely used in PE, PVC, PP, PS, PC, polypropylene fiber, ABS resin, epoxy resin, resin fiber and vinyl acetate. It can also be used in plastic containers, food packaging boxes and other packaging materials, providing them with good light stability effect and almost no absorption of visible light. It is especially suitable for colorless, transparent and light colored products.

CAS No.

3147-75-9

Formula

C20H25N3O

Molecular Mass

323.43200

Exact Mass

323.20000

PSA

50.94000

Logp

4.83990