2,2',4,4'-Tetrahydroxybenzophenone UV BP-2 CAS 131-55-5
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Product Description
Product Details
Introduction and Application
BP-2 is a wide-band benzophenone UV absorber, with absorption wavelength extending to UVA; it has high efficiency in absorbing 260nm-400nm UV rays. It is particularly suitable for applications that require absorption of wavelengths of 400nm and below, such as linear polyester and CR-39 resin lenses. BP-2 can also be used in alkyd resins, phenolic resins, fluorescent pigments, PUR systems, oily coatings and other polymer dispersion systems, oily coatings and other polymer dispersion systems
Specification
|
Appearance |
Yellow crystalline powder |
|
Content |
≥99% |
|
Melting point |
195-202 °C |
|
Volatile Matter |
≤0.5% |
|
Turbidity NTU |
≤12 |
|
E345 (1%1CM) |
≥580 |
|
Color (GARDNER) |
≤3.0 |
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