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Ultraviolet Radiation Absorbent UV-531 (ALSO SUPPLY UV-81)
Product data: Ultraviolet Radiation Absorbent UV-531 (ALSO SUPPLY UV-81)
Chemical Name: 2-Hydroxy-4-n-octoxybenzophenone
Description:

UV - 531 is a highly effective anti-aging additive, it can absorb 240-340 nm UV light with light color, non-toxic, good compatibility, small mobility easy processing, etc.

Chemical structure formula:
CAS No: 1843-05-6 Molecular formula: C21H26O3 Molecular weight: 326
Specifications:

Physical Properties:

Appearance

Light yellow powder

Content

≥99.0-99.5%

Melting Range

47-49℃

Ash

≤0.1%

Light transmittance

450nm≥90%
500nm≥95%

Volatiles:

≤0.5%

Solubility: (At 20℃g/100ml solvent)

Methanol

2

Acetone

74

Benzene

72

Ethanol (95%)

2.6

n-heptane

40

n-hexane

40.1

Uses Applications:

It has the greatest protection to polymer, and helps to reduce color, delay the yellowing and physical properties loss at the same time. He is widely used in PE, PVC, PP, PS, PC, organic glass, polypropylene fiber and ethylene vinyl acetate, etc. But for dry phenolic and alcoholic acid varnish, polyurethane, acrylic acid, epoxy and other dry air products and automotive repair paint, powder coating, polyurethane, rubber products, etc., it provides them a good stable effect. Amount 0.1% - 0.5%.

Packing and store:

Package: Net 20kg/ two-layer PE bag in carton/drum, or as required.

 
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