Introduction: ABSORBENT 531 can absorb the ultraviolet ray of 240-340mm wavelength effectively. When used with antioxidant, it

Chemical Name:  2-Hydroxy-4-n-octoxybenzophenone

Molecular formula	C21H26O3
Molecular Weight	326
CAS#	1843-05-6

Introduction:   ABSORBENT 531 can absorb the ultraviolet ray of 240-340mm wavelength effectively. When used with antioxidant, it has cooperative effect. 

Physical Properties:

Appearance:	PALE YELLOW Powder	Assay:	≥99%
Melting Range:	47-49	Ash:	≤0.1%
Light Transmittance:	460nm≥97% 500nm≥98%	LOSS ON DRYING:	≤0.5%

Applications: UV-absorber for plasticized and rigid PVC, polyester, PS, Acrylate resins, vinyl ester based coatings, PU based coatings, alkyed resin coatings, improves the weather resistance of the coating.

Package:  The package is the paperboard drum lined with plastic bag. The net eight is 10kg / drum (20kg / drum).

Storage: When stored, please avoid the rain, moisture and sunshine.

Period of Validity:  About 2 years

UV-ABSORBENT 531