UV-328(Benzotriazole UV Absorber) CAS No.: 25973-55-1
Chemical name: 2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole
CAS No.: 25973-55-1
Other Names: Benzotriazole
Molecular Formula (MF): C22H29N30
EINECS No.: 247-384-8
Purity: 98% Min
Place of Origin: Shanghai, China
Usage: Coating Auxiliary Agents, Plastic Auxiliary Agents
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.
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, Lonwinchem. is not
able to recommend this material as safe and effective for such uses and assumes no liability for any such uses.
Specification
Item |
Specification |
Molecular Weight |
351.5 |
Appearance |
Slight yellow powder |
Melting Range |
80 - 88 °C |
Flashpoint |
229 °C |
Specific Gravity(20 °C) |
1.17 g/cm³ |
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Storage:
keep container tightly closed in a dry and well-ventilated place.
Packing:25kgs/bag or 25kgs/drum
Weight |
Packing |
<25KG |
By foil-alum bag/pap/bottle |
≥25kg |
Package: 25kg/drum/bag or as your request |
Packaging & Delivery
Company Profile
Lonwin Chemical Industry Group. is a company committing to contract synthesis and production of photoinitiators,
fluorocarbon surfactants, indicators, intermediates and APIs.Our company has ISO and REACH international
certification, in Jiangsu, Anhui and other places with decades of cooperation of OEM processing plants, to provide a
more solid support for the customized production service of special chemicals.
Now, our products are well sold in North America, Europe, Japan, South Korea and the Middle East, and customers
are highly satisfied with our products and service!
To achieve sustainable and steady development, we establish closely cooperative relationships with famous
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