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Ultraviolet Absorbent UV-531(BP-12)

2-Hydroxy-4-n-octoxy benzophenone. It acts as a light stabilizer with good performance, capable of absorbing the UV radiation of 240-340 nm wavelength. It appears as a light yellow needle-like powder. It is non-toxic, show small mobility and easy processing etc. with good compatibility. It protects the polymer to its maximum extent and helps to reduce the color. It delays the yellowing and obstacle the loss of its physical function. It is widely applied to PE, PVC, PP, PS, PC organic glass, polypropylene fiber, ethylene-vinyl acetate etc. Moreover, it has very good light stability effect on drying phenol aldehyde, polyurethane, acrylate, expoxide etc. Its dosage is 0.1%-0.5%.
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Product Type
Light Stabilizers / UV Absorbers > Benzophenones
Chemical Composition
2-Hydroxy-4-n-octoxy benzophenone
CAS Number
1843-05-6
SpecialChem additionnal informations based on CAS Number : 1843-05-6

Hansen Solubility Parameters

[18.6, 9.2, 3.9]
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[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with Ultraviolet Absorbent UV-531(BP-12). A practical determination of these HSP values would provide higher certainty. Learn More.

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