Gold Member Since 2016
Audited Supplier
Lonwin Industry Group Limited

2- (2-Hydroxy-3 5-dipenryl-phenyl) Benzotriazole, UV-328 manufacturer / supplier in China, offering UV 328, 2- (2-Hydroxy-3, 5-dipenryl-phenyl) Benzotriazole, UV P, 2- (2-Benzotriazolyl) -4-Methylphenol, 1, 2-Benzisothiazolin-3-One (BIT) , 1, 2-Benzisothiazoline-3-One, and so on.

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Supplier Homepage Product Rubber And Plastic Additives UV 328, 2- (2-Hydroxy-3, 5-dipenryl-phenyl) Benzotriazole

UV 328, 2- (2-Hydroxy-3, 5-dipenryl-phenyl) Benzotriazole

FOB Price: US $1-15 / kgs
Min. Order: 100 kgs
Min. Order FOB Price
100 kgs US $1-15/ kgs
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Production Capacity: 220mt/Year
Transport Package: 25kgs /Drum
Payment Terms: L/C, T/T, D/P, Western Union

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Basic Info
  • Model NO.: 2-(2-Hydroxy-3, 5-dipenryl-phenyl) benzotriazole
  • Environmental Protection: Yes
  • Kind: Antioxidant
  • Trademark: Lonwin
  • Origin: Made in China
  • Certification: SGS
  • Color: Yellow
  • Appearance: Powder
  • Specification: purity: 99. %
  • HS Code: 2918199090
Product Description

Quick Details

Classification:
Chemical Auxiliary Agent
CAS No.:
25973-55-1
Other Names:
TINUVIN 328; Eversorb74; Lowilite 28; Cyasorb UV 2337; Ciba 3028
MF:
C22H29N30
EINECS No.:
247-384-8
Purity:
99%
Place of Origin:
China (Mainland)
Type:
Adsorbent
Adsorbent Variety:
benzotriazole
Usage:
Coating Auxiliary Agents, Leather Auxiliary Agents, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Textile Auxiliary Agents
Brand Name:
LONWIN
Model Number:
UV-328

Packaging & Delivery

Packaging Details:20 kg or 25kg per drum

 

Product Description

UV Absorber 328 (UV-328, UV 328, UV328)

 

Other Names:   TINUVIN 328; Eversorb74; Lowilite 28;  Cyasorb UV 2337; Ciba 3028

 

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.

 

Molecular Formula : C22H29N30


CAS NO : 25973-55-1

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%

 


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

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. Because of wide range of such potential uses, Lepuz is not able to recommend this material as safe and effective for such uses and assumes no liability for any such uses.

Storage

This product may be stored for one year 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 not in use. 

Handing

In accordance with good industrial practice, handle with care and avoid unnecessary personal contact. Avoid continuous or repetitive breathing of dust. Use only with adequate ventilation. Prevent contamination of the environment. Avoid dust formation and ignition sources. 
 

 

Packaging & Shipping

  UV-328 is available in powder form in a 20 kg (44.1 LB) fiber drum or 25 kg net weight, with an inner PE liner. 

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