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UV Absorber UV-326

  • CAS No.: 3896-11-5
  • Purity: 99%min
  • Weight: 315.79732
  • Formula: C17H18ClN3O
  • Place of Orign: Hangzhou ,Zhejiang,China
Ms.Keira Tang

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Item specifics

  • Product Name.:UV Absorber UV-326
  • CAS No: 3896-11-5
  • Weight: 315.79732
  • Formula: C17H18ClN3O
  • Melting Point: 144-147 ºC
  • Boiling Point: 460.4 ºC at 760 mmHg
  • Density: 1.26g/cm3

Details

Chemical name : 2-(2'-Hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzortriazole
Introduction : UV-326 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. UV-326 is especially suited for polyolefins and cold cured polyesters. It protects polymers from UV radiation helping to preserve the original appearance and physical integrity, especially for polyolefins and polyester resins.

Empirical Formula : C17H18N30Cl

CAS NO : 3896-11-5

Structure :


Physical Properties
Molecular Weight : 315.8
Appearance : slight yellow powder
Melting Range : 138-141 °C
Flashpoint : 229 °C
Specific Gravity(20 °C) : 0.37g/cm3

Transmissirity:
460nm≥ 97 %
500nm≥ 98%
Applications
1. Unsaturated Polyester : 0.2-0.5wt% based on polymer weight
2.PVC:
Rigid PVC : 0.2-0.5wt% based on polymer weight
Plasticized PVC : 0.1-0.3wt% based on polymer weight
3.Polyurethane : 0.2-1.0wt% based on polymer weight
4.Polyamide : 0.2-0.5wt% based on polymer weight

Packing: 25kg paper drum or carton
UV Absorber UV-326

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