UV absorber UV-531

Advantage:

‍UV absorber UV-531 is high performance UVA which can absorb 270-340nm ultra-violet light.
It features light colors, non-toxicity, good compatibility, good process ability and low migration.‍

Applications:

Used in PE, PP, PS, AS resin, ABS resin, PC, PVC, polyvinylidene chloride, polyester and PA.

Package:

25KG cartons or drums

Storage and Transportation:

Keep container tightly closed and dry and storage in cool place.

Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.

Technical Specifications

‍Product Name: UV absorber UV-531
CAS No.: 1843-05-6
Chemical Name:2-Hydroxy-4-n-octoxybenzophenone
Molecular Formula: C21H26O3
Molecular Weight: 326.4
Other Name:Tinuvin 531
Appearance: Yellowish crystalline powder or flake‍

Melting Point		47-49℃
Purity		≥99%
Ash		≤0.1%
Loss On Drying		≤0.5%
Transmittance		450 nm≥95% 500 nm≥97%
Recommended dosage	PE	PVC	PP	ABS
	0.2-0.4%	0.25-0.5%	0.5%	0.3-0.5%