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Benzophenones Based Ultraviolet Absorbers

PowerSorb™ 3040

2-Hydroxy-4-methoxybenzophenone.
Chemical Structure
Introduction / Features
PowerSorb™ 3040 is readily compatible with many plastics. It is a particularly effective UV absorber in PVC and unsaturated polyester resins.
Physical Properties
Chemical Name: 2-Hydroxy-4-methoxybenzophenone
CAS No.: 131-57-7
EINECS No.: 205-031-5
Formula: C14H12O3
Molecular Weight: 228
Density[20°C, g/cm3]: 1.32
Melting Point(°C): 62 -65
Solidification Point(°C): 62-72
Boiling Point(°C): 150-160
Volatiles(%): Max.0.50
Heavy Metals(PPM): Max.5.00
Appearance: Pale Yellow Powder
Min. Purity: 99.5%

Solubility (20°C) % w/w
Acetone: 50
Benzene: 80
Ethanol: 5
Ethyl acetate: 38
Methylene Chloride: 20
Chloroform: 120
Chlorobenzene: 50
Isopropanol: 2
Tetrachloroethane: 110
Methyl ethyl ketone: 40
Methanol: 3
Toluene: 0.8
Water: <0.01

Applications
PowerSorb™ 3040 exhibits good heat stability and does not affect the inherent colour of polymer substrates.
Other applications are:
– Acrylic resins
– Alkyd resins
– Cellulose nitrate
– Phenolic resins
– Oil colours
Packings
PowerSorb™ 3040 is supplied in 25kg drum.
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