Best price/Fast Delivery/Manufacturer 1843-05-6

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Best price/Fast Delivery/Manufacturer 1843-05-6

Located in Hangzhou, a highly developed city in China, Hangzhou YaoShi COOP Import & Export Co., Ltd. is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Not only  the outstanding customer service and high product quality, the company  covers the range of Azo Initiators ,UV Abosorbers, Antioxidants, Fluorescent Whitening Agent, Oganic Pigments, Blowing Agent  and etc. Fine chemicals. We do not simply develop, manufacture or supply chemicals, we provide chemical solutions and expertise. Until now ,we has established a long-term and steady business partnership with the companies for many countries and regions, and get their highly appraised and trusted by our efficient work.

This product is a UV absorber, can strongly absorb the wavelength of 270 ~ 330nm UV, can be used for all kinds of plastics, especially polyethylene, polypropylene, polystyrene, ABS resin, polycarbonate, polyvinyl chloride, Vinylidene chloride, epoxy resins, polyesters and cellulose resins. Good compatibility with resin, low volatility. The general amount of 0.1% to 1%. This product can also be used as a variety of paint light stabilizer. This product is less toxic. Many countries permit this product to be used in food contact plasticized products, such as the United States for polyolefins, the United Kingdom (up to 0.6%), Italy (polyethylene, polypropylene up to 0.5%), Japan dosage: poly 0.5% of ethylene, 1% of polypropylene, 0.5% of AS resin and ABS resin, 0.2% of polyvinyl chloride (can not touch oil-based food or food containing more than 20% of food).

UV-531 1843-05-6

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

Structure : 

Physical Properties

Molecular Weight : 326

Appearance : light yellow powder

Melting Range : 47-49 °C

Assay : 99% Min.

Volatile Matter : < 0.5% Max.

Specific Gravity(20 °C) : 1.16g/cm³