Benzophenone UV Absorber UV-531 

Other names: UV stabilizer BP-12; Chimassorb 81; UV531; UV 531; Lowilite 22; Eversorb12; UV absorbent 531; Ultraviolet light absorber UVA 531; Benzotriazole UV absorber 531; benzophenone-12

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

Introduction : UV- 531 is an ultraviolet light absorber (UVA) of the benzophenone class, imparting good light stability for plastics and other organic polymers. Due to its highly effective broad UV absorption properties and excellent polymer compatibility, UV- 531 offers maximum polymer protection and low color contribution, retards yellowing and loss of physical properties.

CAS NO : 1843-05-6

Empirical Formula : C21H26O3


Physical Properties

Molecular Weight : 326

Appearance : light yellow powder or flakes

Melting Range : 47-49 °C

Assay : 99% Min.

Volatile Matter : < 0.5% Max.

Specific Gravity(20 °C) : 1.16g/cm3

Solubility At 20 ºC (g/100ml solvent)

UV Absorption

Absorption Spectrum (10mg/l, Chloroform)

Applications

1.Polypropylene : 0.2-0.5wt% based on polymer weight

2.PVC:

  Rigid PVC : 0.5wt% based on polymer weight

  Plasticized PVC : 0.5-2 wt% based on polymer weight

3.Polyethylene : 0.2-0.5wt% based on polymer weight

Toxicity & Safety

This material is not intended for use in products for which prolonged contact with mucous membranes or abraded skin, or implantation within the human body is specially intended, unless the finished product has been tested in accordance with the Food and Drug Administration and/or other applicable safety testing requirements. 

Storage

The product may be stored up to two years in a sealed container. Containers should be stored in a cool, dry area. Extended storage at elevated temperatures or exposure to direct heat or sunlight could reduce product life. Keep containers sealed when no in use.

Handling

In accordance with good industrial practice, handle with care and avoid unnecessary personal contact. Protect skin. Prevent contamination of the environment. Avoid dust formation and ignition sources.

Packaging & Shipping

 20kg carton box

Application

We have exact inventory plans to guarantee stable supply.

We have many years' experience of chemical logistics and dangerous chemical managers with specially trained, which ensure the safety and right of chemicals, timely logistics.

Our laboratory takes strictly testing on every lot of goods according to customers' requirement. Meanwhile we has good relationship with the third party company SGS.

After-sales service is the important part in our service. If there are quality problems, we will actively cooperate with the customers and solve the problems early.

We expect to become good partners with our customers for long.





Company Information 




 

Q: Do you have any certificate for quality?

 A: Yes, we have ISO9001:2008 quality system certificate and REACH.

Q: Can you customize products?

A: Yes, we can.

Q: Can you provide samples for quality checking before placing an order?

A: Samples are avaliable upon request, but the shipping cost should be paid by customer.

Q: How to get the price list?

A: Please inqire us by alibaba/email.

Q: What's your payment term?

A: TT/LC/DA/DP/Paypal