2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole CAS NO.3864-99-1

ULTRAVIOLET RADIATON ABSORBENT UV-327 Chemical Name: 2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazoleMolecular formula C20H24N3OCL Molec…

ULTRAVIOLET RADIATON ABSORBENT UV-327 Chemical Name: 2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazoleMolecular formula C20H24N3OCL Molecular Weight 358 CAS# 3864-99-1 Introduction: This product is an ultraviolet light absorbent of the hydroxyphenyl benzotriazole class, which imparts outstanding light stability to plastics and other organic substrates.Physical Properties: Appearance: Yellow powder Assay: ≥99%Melting Range: ≥154℃ Ash: ≤0.1%Light Transmittance: 460nm≥95%500nm≥97% Volatiles: ≤0.5%Solubility: (At 20℃g/100ml solvent)Water 　　　　<0.01 Methylene chloride 17Acetone 　　　　　1 Methanol <0.1Benzene 　　　　　16 n-Hexane 4Applications: This product is a highly effective light stability for variety of plastics and other organic substrates. Due to Its red shifted UV absorption, it is particularly suited foruse in the stabilization of polymers that are especially sensitive to long-wavelength UV radiation (eg. Polyurethanes, polyphenylene sulfide) and in certain applications where very low transmission of long-wavelength UV radiationis required (eg. Optical lenses). Its use is recommended in a variety of polymers and organic substrates, including a crylic polymers, unsaturated polyesters, polyvinyl-chloride, polyolefins, polyvinglbu-tyral, elastomers and adhesives.Package: The package is the paperboard drum lined with plastic bag. The net weight is 20kg / drum Storage: When stored, please avoid the rain, moisture and sunshinePeriod of Validity: About 2 years