PowerSorb™ 327 ,2-(2’-Hydroxy-3’,5’-di-t-butylphenyl)-5-chlorobenzotriazole,CAS No. 3864-99-1



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	Antioxidant \| Ultraviolet Absorber \| Light Stabilizer \| Photoinitiator

Benzotriazole Based Ultraviolet Absorbers

PowerSorb™ 327

2-(2’-Hydroxy-3’,5’-di-t-butylphenyl)-5-chlorobenzotriazole.
Synonym: 2,4-di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol

Chemical Structure

Introduction / Features

PowerSorb™ 327 is a strong absorber of ultraviolet radiation and has a high degree of photostability - photochemical energy absorbed in the ultraviolet region is dissipated as thermal energy.

Physical Properties

Chemical Name:	2-(2’-Hydroxy-3’,5’-di-t-butylphenyl)-5-chlorobenzotriazole
CAS No.:	3864-99-1
EINECS No.:	223-383-8
Formula:	C`20`H`24`N`3`OCl
Molecular Weight:	358
Specific Gravity [25°C, g/cm3]:	1.26
Melting Point(°C):	154-158
Flash Point(°C):	454
Vapor Pressure（20°C）:	8.2E-9
Volatile Loss(%):	Max.0.5
Color of Solution 460nm(%):	Min.95
Color of Solution 500nm(%):	Min.97
Appearance:	Pale Yellow Powder
Ash(%):	Max.0.1
Min. Purity:	99%

Solubility (20°C)	% w/w
Xylene:	15
n-Butyl acetate:	7
Mineral spirits:	5
Methyl methacrylate:	14
Ethanol:	0.3
Ethyl acetate:	6
n-Hexane:	3
Dioctyl phthalate:	3
Toluene:	16
Methyl ethyl ketone:	4
Styrene:	14
Water:	<0.01

Applications

PowerSorb™ 327 is particulary suitable for polypropylene and polyethylene as well as cold cured polyesters, polyurethanes, dyes, and pigments.

PowerSorb™ 327 can be used in combination with phenolic & phosphite antioxidants, and HALS to optimize performance in outdoor use.

PowerSorb™ 327 exhibits good initial color, low volatility, excellent stability to heat and light, superior wash fastness, and resistance to gas fading.

PowerSorb™ 327 almost does not absorb visible light, particularly applicable to colorless and light-colored products.

Packings

PowerSorb™ 327 is supplied in 25Kg carton box or 50kg fiber drum.

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