UV Absorber 531

Product Name

Benzophenone-12(UV-531)

Synonyms

[2-Hhydroxy-4-(octyloxy)phenyl]phenylmethanone;2-HYDROXY-4-N-OCTOXYBENZOPHENONE;2-HYDROXY-4-N-OCTYLOXYBENZOPHENONE;2-HYDROXY-4-(OCTYLOXY)BENZOPHENONE;2-HYDROXY-4-(OCTYLOXYL)-BENZOPHENONE;CHIMASSORB 81;BENZOPHENONE-12;Octabenzone

CAS

1843-05-6

Molecular formula

C21H26O3

Molecular Weight

326.43

Molecular Structure

Physical and Chemical Properties

General Description

Pale greenish yellow crystalline powder

Usage

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

Packing

25kg fiber drum.

Storage condition

Must be stored in closed containers in dry cool conditions. The shelf life of Bp-12 is two years in original, unopened containers.

Specifications

Items

Standard

Appearance

Pale greenish yellow crystalline powder

Assay(HPLC)

≥ 99.0 %

Melting Point

47.0 ℃ ~ 49.0 ℃

Loss on Drying

≤ 0.50 %

Heavy Metals

≤ 5 ppm

Burnt Residue

≤ 0.10 %