Factory best selling Pvc Uv Absorber - UV Absorber UV-320 TDS CAS NO.: 3846-71-7 – DEBORN

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Factory best selling Pvc Uv Absorber - UV Absorber UV-320 TDS CAS NO.: 3846-71-7 – DEBORN Detail:

Introduction:
This product is high-efficiency light stabilizing agent, and widely used in plastic and other organics. It has strong ultraviolet radiation absorption ability and low volatility.
Molecular formula:C₂₀H₂₅N₃O
Molecular weight:323.4
CAS NO.: 3846-71-7
Chemical structural formula:

Technical index:
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

Packing and Storage:

Package: 25KG/CARTON

Storage: Stable in property, keep ventilation and away from water and high temperature.

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