PowerSorb™ 1000,CAS No. 2440-22-4,2-(2H-benzotriazol-2-yl)-p-cresol



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

Benzotriazole Based Ultraviolet Absorbers

PowerSorb™ 1000

2-(2H-benzotriazol-2-yl)-p-cresol.

Synonym: 2-(2H-Benzotriazole-2-yl)-4-methylphenyl;
2- (2’-hydroxy-5’-methylphenyl) benzotriazole

Chemical Structure

Introduction / Features

PowerSorb™ 1000 is a strong absorber of UV radiation, imparting good light stability to a wide variety of polymers.it is a slightly yellowish crystalline powder.

Physical Properties

Chemical Name:	2-(2H-benzotriazol-2-yl)-p-cresol
CAS No.:	2440-22-4
EINECS No.:	219-470-5
Formula:	C`13`H`11`N`3`O
Molecular Weight:	225
Melting Point(°C):	128-132
Flash Point (°C):	205
Vapor Pressure `20°C`:	1.5E-4Pa
Transmittance(%)500nm:	5g/100ml
Specific Gravity`[20°C]`:	1.38g/cm3
Volatile (%) :	Max.0.5
Color of Solution 440nm (%):	Min.97
Color of Solution 450nm(%):	Min.98
Appearance:	Slightly Yellow Powder
Ash (%):	Max.0.1
Min. Purity:	99%

Solubility (20°C)	% w/w
Acetone:	3
Chloroform:	13
Dioctyl phthalate:	2
Benzene:	7
Butyl acetate:	3
Carbitol:	2
Ethanol:	0.3
Ethyl acetate:	3
n-Hexane:	0.8
MEK:	4
Methanol:	0.5
Dichloromethane:	16
Methyl methacrylate:	5
Mineral spirits:	1.5
Styrene:	7
Toluene:	6
Water:	<0.01

Applications

PowerSorb™ 1000 provides ultraviolet protection in a wide variety of polymers including styrene homoand copolymers, engineering plastics such as polyesters and acrylic resins, polyvinyl chloride, and other halogen containing polymers and copolymers (e.g. vinylidenes), acetals and cellulose esters. Elastomers, adhesives, polycarbonate blends, polyurethanes, and some cellulose esters and epoxy materials also benefit from the use of PowerSorb™ 1000.

Packings

PowerSorb™ 1000 is supplied in 25Kg plastic drum lined iron barrel.

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