Chemical name: 2 - hydroxy - 4 - octyl oxygen radicals diphenyl ketone

Chinese name: UV absorber UV - 531, diphenyl ketone - 12, BP - 12

English name: 2 - Hydroxy - 4 - n - octyloxybenzophenone (12) Benzophenone -

Molecular formula: C21H26O3

Formula:

Molecular weight: 326.43

CAS no. : 1843-05-6

EINECS no. : 217-421-2

Physical and chemical properties: 47-49 ℃ melting point, density 1.160 g/cm3, soluble in benzene, hexane, acetone, slightly soluble in ethanol, slightly soluble in ethylene dichloride.

Characteristic and application: UV absorber UV - 531 is a kind of performance is remarkable effective anti aging additives, absorbing, 240-340 nm UV light color light, non-toxic, good compatibility, mobility is small, easy processing, etc. It has maximum protection to the polymer, and helps to reduce color, at the same time delay yellowing and block physical performance loss.

Mainly used as polyethylene, polypropylene, polyvinyl chloride (PVC), polyurethane rubber synthetic materials such as light stabilizer. Widely used in PE, PVC, PP, PS, PC, polycarbonate, organic glass, polypropylene fiber and vinyl acetate, etc. But for dry phenolic and alcoholic acid varnish, polyurethane, acrylic acid, epoxy and other air drying products and car repair paint, powder coating, rubber products, such as providing them with good light stability results. The dosage of 0.1 0.5%.

Product specifications:

Appearance bright yellow needle crystal powder

Content of 99% or higher

Melting point 47-49 ℃

Dry weight loss < 0.5%

The ash of < 0.1%

Light transmittance 450 nm > 90%

500 nm > 95%

Survey package: paperboard barrel lined with plastic bag packing: net weight 25 kg/barrel; The cartons lined with plastic bag packing: 20 kg/box; Can also be designed according to customer's requirements.

To prevent caking, UV - 531 should be under 35 ℃ temperature transportation and storage.