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UV Absorber UV-320 2018-11-01T10:59:59+00:00
UV Absorber UV-320

UV Absorber UV-320 | CAS 3846-71-7

  • CAS No.: 3846-71-7
  • EINECS No.: 223-346-6
  • Molecular Formula: C20H25N3O

Product Information of UV Absorber UV-320 (CAS 3846-71-7)

UV-320 is a high-efficiency light stabilizer widely used in plastics and other organic materials, including unsaturated polyester, PVC, PVC plastic, etc.

  • Product Name: UV Absorber UV-320
  • Chemical Name: 2-(2′-hydroxy-3′,5′-di-t-butyl-phenyl)benzotriazole
  • Molecular Weight:  323.4 g/mol
  • Synonyms: ULTRAVIOLET ABSORBENT UV-320; UV-320; Light Stabilizer 320; Benzotriazole UV 320; 2-(Benzotriazol-2-yl)-4,6-ditert-butylphenol
  • Category: Benzotriazole UV Absorber

Specifications of UV Absorber UV-320 (CAS 3846-71-7)

Appearance Yellowish crystalline powder
Assay ≥99%
Boiling Point 444°C at 760mmHg
Flash Point 215°C
Melting Point 152-156°C
Ash ≤0.1%
Loss on drying ≤0.3%
Transmittance 460nm≥97%; 500nm≥98%
Recommended dosage PVC unsaturated polyester Polyester
0.25-0.5% 0.2-0.4% 0.3-0.5%
Packaging 20kg or 25kgs/drum or carton

Properties of UV Absorber UV-320 (CAS 3846-71-7)

As a high efficient and an excellent light stabilizer, UV-320 has strong ultraviolet absorbing ability and low volatility characteristics.

Applications of UV Absorber UV-320 (CAS 3846-71-7)

UV-320 can protects polymers as well as organic pigments from UV radiation helping to preserve the original appearance and physical integrity of molded articles, films, sheets and fibers during outdoor weathering. It mainly used in plastics and other organic materials, such as unsaturated polyester, PVC, PVC plastic, etc.

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