UV Absorber UV-320

Short Description:

Product Detail

Product Tags

Chemical Name: 2-(2H-benzotriazol-2-yl)-4,6-di-tert-butylphenol
CAS NO.:3846-71-7
Molecular Formula:C20H25N3O
Molecular Weight:323.4


Appearance:light yellow powder
Content: ≥ 99%
Melting point: 152-154°C
Loss on drying: ≤ 0.5%
Ash: ≤ 0.1%
Light transmittance: 440nm≥97%, 500nm≥98

Toxicity: low toxicity,rattus norvegicus oral LD 50 >2g/Kg weight.

General dosage:

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

Package and Storage

1. 25kg carton
2. Stored in sealed, dry and dark conditions

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