Ultraviolet Absorber PowerSorb 531



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

Benzophenones Based Ultraviolet Absorbers

PowerSorb™ 531

2-Hydroxy-4-n-octoxybenzophenone.

Chemical Structure

Introduction / Features

PowerSorb™ 531 is an ultraviolet light absorber (UVA) of the benzophenone class. It is effective in polyolefins, including low and high density polyethylene, polypropylene, olefin copolymers (EPR, EPDM, EVA), and other polymers including polyvinyl chloride, polyesters, natural and synthetic resins, polystyrene and ABS.

Physical Properties

Chemical Name:	2-Hydroxy-4-n-octoxybenzophenone
CAS No.:	1843-05-6
EINECS No.:	-
Formula:	C`21`H`26`O`3`
Molecular Weight:	326
Melting Point(°C):	Min.47
Volatile Loss (%):	Max.0.3
Color of Solution 460nm(%):	Min.95
Color of Solution 500nm(%):	Min.97
Appearance:	Slightly Yellow Powder / Flakes
Ash (%):	0.1 Max
Min. Purity:	99%

Solubility (20°C)	% w/w
Acetone:	43
Chloroform:	61
Ethanol:	3.5
Ethyl acetate:	44
n-Hexane:	12
Methanol:	1.7
Dichloromethane:	67
Toluene:	>50
Water:	<0.01

Applications

PowerSorb™ 531 exhibits synergy with HALS.

PowerSorb™ 531 has excellent solubility and compatibility with high solid coatings formulations.

PowerSorb™ 531 can be used for PE, PP, PVC, PS, PC, PP fiber, Ethylene vinyl acetate etc.

PowerSorb™ 531 provides good light stability effect Paints, Powder coatings, Polyurethanes, rubbers.

PowerSorb™ 531 is recommended in PE, PP, PVC etc.

PowerSorb™ 531can be used in combination with antioxidants, phosphites and other light stabilizers.

Packings

PowerSorb™ 531 is supplied in net weight 25kgfiber drum with PE liner.

Technical Library

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