Hong Kun Group UV 326 UV Absorber

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Hong Kun Group UV 326 UV Absorber
Categories:	Other Engineering Material; Additive/Filler for Polymer
Material Notes:	UV-326 is a important ultraviolet absorber of bonzotriazoleseries, which is stable, nontoxic, higher absorbency for ultraviolet ray. Widely used for photosensitive materials and poly merized material, coating and so on. Chemical Name: 2'-(2'-Hydroxy-3'-tert-buty-5'-methyl-phenyl)-5-chlorobenzotriazole CAS No. 3896-11-5 All information provided by Hongkun Group
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Physical Properties	Metric	English	Comments

Volatiles	<= 0.050 %	<= 0.050 %
Molecular Weight	315.8 g/mol	315.8 g/mol
Ash	<= 0.50 %	<= 0.50 %

Thermal Properties	Metric	English	Comments
Melting Point	138 °C	280 °F

Optical Properties	Metric	English	Comments
Transmission, Visible	>= 97 % @Wavelength 460 nm	>= 97 % @Wavelength 460 nm
	>= 98 % @Wavelength 500 nm	>= 98 % @Wavelength 500 nm

Descriptive Properties
Appearance	light yellow powder
Purity (%)	99

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