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UV-320
Chemical name:

2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)benzotriazole

Molecular formula:
C20H25N3O
Molecular weight:
323
Structural formula:

CAS #:
3846-71-7
Properties & Uses:

it is high efficient light stabilizer for unsaturated polyester, PVC, PVC plasticizing glue, especially for polyurethane, Polyamide and chemical fiber. It can prevent polyester and organic material from UV . Compared with other UV adsorbent, it has lighter color. It can be used in PS, PMMA, polyester, hard PVC PC, ABS resin, suitable for transparent products and engineering plastic processed in high temp. It can work with antioxidant

Technical standard:

Appearance:

light yellow powder

Assay :

≥99% (HPLC)

Melting point:

152-154℃

Light transmittance:

460nm≥98%

500nm≥99%

Volatile matter:

≤0.3%

Packing:
In net wt. 25kg/cardboard drum(paper sack)
Storage:

Good stability during the period of Storage, avoid high temperature and moisture.

 

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