UV absorber UV stabilizer UV 531

Product Description
 

Product Name UV 531

Identification
Synonyms 2-hydroxy-4-(octyloxy)benzophenone; BP12; Octabenzone
Molecular Formula C21H26O3
Molecular Weight 326.43
CAS Number 1843-05-6
EINECS/ELINCS 217-421-2

Structure

Properties
Appearance light yellow crystalline powder
Melting Range 47-49 °C
Solubility soluble in organic solvents
Stability stable under ordinary conditions


Specification

Item	Specification
Appearance	light yellow crystalline powder or flakes
Purity	99.0% min
Melting point	47.0 - 49.0 °C min
Loss on drying	0.5% max
Residue on ignition	0.1% max
Transmittance 450nm	90.0% min
Transmittance 500nm	95.0% min

uv 531 applications

Ultraviolet Absorbent UV-531 is akind of highly effective aging inhibitor additives of the excellent perfor-mance. It has many advantages and features of light color, no poisonous, good solubility, easy process, etc.It can provide the most effective protection for polymers and be helpful to reduce coloration while it can put offturning yellow and resist the loss of their physical performance. It is widely used for PE,PVC,PP,PS,PC,polycarbonate, organic glass, polypropylene hemp and vinyl acetate, etc. And it has provided light stabilizationfor dry phenols, alkyd varnishes, polyurethanes, acrylic, epoxies, and other air drying products and automotiverepair paint, powder coating, rubber, etc., good light stability role.Usage: 0.1%-0.5% based on polymers weight.

Packing and Storage
Packing In 20 or 25kgs net carton or cardboard drum
Storage Keep tightly closed and store in cool and dry place