UV Absorber UV-320 CAS No. 3846-71-7

• CAS No.: 3846-71-7
• Formula: C20h25n3o
• EINECS: 223-346-6
• Color: Light Yellow
• Kind: UV Absorber
• Appearance: Powder
• Model NO.: CAS NO. 3846-71-7
• Storing: Sealed, Dry and Dark Conditions
• Transport Package: 25kg Carton
• Specification: powder
• Trademark: DEBORN
• Origin: China

Product Description

Chemical Name: 2-(2H-benzotriazol-2-yl)-4,6-di-tert-butylphenol
Synonyms:2-(2-hydroxy-3,5-di-tert-butylphenyl)-2h-benzotriazole
Molecular Formula  C20H25N3O
Molecular Weight   323.4  
Structure


CAS Number   3846-71-7

Specification

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%

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

Other products of the UV Absorber Series, for example:
BP-1 (UV-0)
BP-2
BP-3(UV9)
BP-4
BP-5
BP-6
BP-9
BP-12(UV-531)
BP-P
UV-120
UV-234
UV-326
UV-327
UV-328
UV-329
(UV-5411)
UV-360
UV-571
UV-1084
UV-1164
UV-1577
UV-2908
UV-3030
UV-3039
UV-3638
UV-4050H
UV-5050H
UV-1
UV-2