UV-531 can absorb 240-340 nm ultraviolet light. It is a high-efficiency anti-aging additive with excellent performance. UV-531 has a great protective effect on the polymer, helps to reduce the color, and at the same time delays yellowing and retards the loss of physical properties.
Name:Ultraviolet absorber UV-531
Chemical Name:2-Hydroxy-4-Octyloxy Benzophenone
CAS # : 1843-05-6
Structural Formula :
Property : Yellowish powder
freely soluble in benzene, n-hexane, acetone, slightly soluble in ethanol, very slightly soluble in ethane dichloride.
Melting Point: 47~49 °C
Ash: ≤ 0.1 %
Light Transmittance: 450nm ≥90%
500nm ≥95 %
It is capable of strongly absorbing ultraviolet radiation with the wavelength of
300~375nm, and has low volatility, being almost colorless. It is compatible with most of the polymers, particularly with polyolefin, also applicable to polystyrene, polyester, acrylic fiber etc. with the general dosage of 0.2-0.6%.
Package : 25kg/Carton box
No toxicity kept away from moisture and fire in transportation; stored and transported as common chemicals with relatively good stability.