Ultraviolet Absorber UV-531

1.Product description and application

Ultraviolet Absorbent UV-531(BP-12)

Chemical Name

2-Hydroxy-4-n-Octoxy Benzophenone

Chemical Formula

C21H26O3

CAS NO.

1843-05-6

Structural Formula

 

Main Indexes

Appearance: Light yellow needle-like powder

Content : ≥99%

Melting Point :47-49°C

Ash : <0.1%

Light Transmittance:450nm>90% 500nm>95%

Solubility (25°C) (g/100g Solve NT): Acetone: 74 Benzene 72

                                                                 Methanol: 2 Ethanol (95%):2.6

                                                                 n-heptane:40 n-hexane:40.1

Characteristics and Uses

This product is a light stabilizer with good performance, capable of absorbing the UV radiation 

of 240-340 nm wavelength with the characteristics of light color, nontoxic , good compatibility, 

small mobility, easy processing etc. 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. Moreover, it has very good light-stability effect on drying phenol aldehyde,

 varnish of alcohol and acname, polyurethane, acrylate, expoxnamee etc. Its dosage is 0.1%-0.5%.

Storing and Packing

This product is nontoxic, inflammable, noncroddible and well stable, packed in cardboard drums 

lined with plastic bags with the net capacity of 20 kg per bag, or according to customers' require