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　　Ultraviolet Absorbent UV-531( BP-12)

　　Chemical Name: 2-Hydroxy-4-n-Octoxy Benzophenone

　　Chemical Formula: C21H26O3

　　CAS NO. 1843-05-6

　　Main Indexes

　　Appearance: Light yellow needle-like powder

　　Content : > = 99% Melting Point : 47-49°CAsh : 90% 500nm> 95%

　　Solubility ( 25°C) ( g/ 100g Solve NT) : Acetone: 74 Benzene 72

　　Methanol: 2 Ethanol ( 95% ) : 2.6

　　n-heptane: 40 n-hexane: 40.1

　　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% .

　　Storing and Packing

　　This product is nontoxic, inflammable, noncroddible and well stable, packed in cardboard drums lined with plastic bags with the net capacity of 20 kg per bag, or according to customers' requirements.

　　Bohanchem offers plastic additives ( chemical additives) such as optical brightener ( optical brightening agent, fluorescent whitening agent) , UV absorber ( UV absorbent) , light stabilizer ( light stabilizing agent, UV stabilizer, UV stabilizing agent) , antioxidant, pigment.

　　Main Products:

　　Fluorescent whitening agent: OB, OB-1, KCB, FP-127, KS, NFW

　　UV absorbers: UV-0, 531( BP-12) , UV-9, UV-P, 326, 327, 328, 329( 5411) , UV-T, 234, 571, 320

　　Antioxidant : 1010, 1076, 168, 264, 1098, 2246, 300, 311, B102, DLTP, DSTP, B215, B225, B900

　　Light stabilizer: 622, 770, 944, 802

　　Pigments: red 122, red 254, violet 19, violet 23, yellow 110, yellow 138, titanium dioxide