Plastic Additive Uv Absorber 531

we are professional manufacture of plastic additive uv absorber 531 which can provide the goods stabley and fastly. competitive price with good quality.

Chemical Name: 2-Hydroxy-4-Octyloxy Benzophenone (Benzophenone-12)
CAS NO: 1843-05-6
Molecular Formula: C21H26O3
Structural Formula:

Property : a Yellowish crystals;
a Yellowish fine powder
Freely soluble in benzene, n-hexane, acetone, slightly soluble in ethanol, very slightly soluble in ethane dichloride.

Specification
Contenti a Y99 %
Melting Point: 47~49 A C
Ash: a 0.1 %
Light Transmittance: (450nm)a Y90%
(500nm)a Y95%
Characteristics and Uses:
This product is a light stabilizer with good performance, capable of absorbing the UV radiation of 240-340 nm wavelength with the characteristics of light color, nontoxic, good compatibility, small mobility, easy processing etc. It can protect the polymer to its maximum extent, helps to reduce the color. It can also delay 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, varnish of alcohol and acname, polyurethane, acrylate, expoxnamee etc. Its dosage is 0.1%-0.5%.