ChemNet > Gold Suppliers > everlop >

UV-328

UV-328

Category :

Catalyst and Auxiliary/Plastic Auxiliary Agent

CAS NO : 25973-55-1
EC NO : 247-384-8
Molecular Formula : C22H29N3O
Main Specifications : 2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole
Synonyms : 2-(2-Hydroxy-3,5-dipenryl-phenyl) benzotriazole;2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-phenol;2-(2H-hydroxy-3-5-Di-tert-Amyllphenyl)benzotriazole;UV-328;Tinuvin 328;Primesorb328;Ultraviolet absorbent UV-328;2-(2'-Hydroxy-3',5'-di-tert-Pentyl Phenyl)-Benzotriazole;BHSORB-328;2-(2'-Hydroxy-3',5-dipenryl-phenyl) benzotriazole;UV absorber-328;UV absorber UV-328;2-(2H-benzotriazol-2-yl)-4,6-bis(2-methylbutan-2-yl)phenol;Ultraviolet absorberUV-328;2-(2H-Benzotriazol-2-yl)-4,6-di-tert-amylphenol;Ultraviolet absorber UV-328;UV 328;2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol;
UV-328
Molecular Structure:UV-328 25973-55-1
Product description:

UV-328(Benzotriazole UV Absorber )


Chemical name : 2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole

Introduction : UV-328 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. UV-328 protects polymers as well as organic pigments from UV radiation helping to preserve the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor weathering.

Empirical Formula : C22H29N30

CAS NO : 25973-55-1

Structure :

Physical Properties

Molecular Weight : 351.5

Appearance : slight yellow powder

Melting Range : 80-88 °C

Flashpoint : 229 °C

Specific Gravity(20 °C ) : 1.17g/cm3

Volatility Pure substance; TGA, heating rate 20 °C /min in air

Weight Loss (%)
Temperature °C
1.0
183
2.0
202
5.0
223


Solubility At 20 °C (g/100ml solvent)

Solvent

Solubility

Acetone

6%

Benzene

39%

Butyl Carbitol

3.5%

Butanol

2.5%

Butylacetate

15%

Chloroform

44%

Ethyl Acetate

20%

Ethylglycol

4%

n-Hexane

16%

MEK

14%

Methanol

0.4%

Xylene

34%

Methylene Chloride

56%

Water

<0.01%


UV Absorption

Absorption Spectrum (10mg/l, Chloroform)

Applications

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

2.PVC:

Rigid PVC : 0.2-0.5wt% based on polymer weight

Plasticized PVC : 0.1-0.3wt% based on polymer weight

3.Polyurethane : 0.2-1.0wt% based on polymer weight

4.Polyamide : 0.2-0.5wt% based on polymer weight

If you are sourcing UV-328 from China ,just feel free to inquire
Inquire
Contact us
Company：
    Ningbo Everlop Import & Export Co., Ltd
E-mail：
 chem@netsun.com
Address：
 Room1203, NO.21 Hualou Lane, Prime Center Haishu District, Ningbo, China.
Zip Code：
 315010
World Wide ChemNet: - International - China - Korea
About Us - Top Products- Partner with Us - Contact Us - Help - Sitemap
ChemNet is a registered trademark of Zhejiang NetSun Co., Ltd.