Ultraviolet Absorbent UV-326

Chemical Name

2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole

Chemical Formula

C₁₇H₁₈N₃OCl

CAS NO.

3896-11-5

Structural Formula

Main Indexes

Appearance: Light Yellow Crystalline Powder
Content : ≥99% 
Melting Point: 137￡­141°C 
Loss on Drying :≤0.5%
Light Transmittance: 460nm≥97% 500nm≥98%

Characteristics and Uses

raviolet radiation with the wavelength of 270-380 nanometers, mainly applied to polyvinyl chlornamee, polystyrene, unsaturated resin, polycarbonate, poly (methyl methacrylate), polyethylene, ABS resin, expoxy resin and cellulose resin. This product almost does not absorbing visible light, particular applicable able to colorless transparent products and colored products. Dosage:0.1-0.5% for thin products and 0.05-0.2% for thick products. It can be applied to plastic products for packing foods.

Storing and Packing

This product is nontoxic, inflammable, incrossible and stable in storing. It is packed in cardborad drum lined with plastic bags with the capacity of 20 kg per drum and can also be packed according to customers' requirements .