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          Welcome to Zhejiang Synose Tech Co., Ltd.!

          Light stabilizer series

          Light Stabilizer UV-2908

          Light Stabilizer UV-2908

          Chemical Name: Hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate

          Synonyms: 3,5-di-t-Butyl-4-Hydroxybenzoic Acid, Hexadecyl Ester; UV-2908; Hexadecyl-3,5-bis-tert-butyl-4-hydroxybenzoate; Palmitoyl-3,5-di-tert.butyl-4-hydroxybenzoate.

          CAS Number: 67845-93-6

          Molecular formulaC31H54O3

          Molecular weight: 475

          Molecular structure

            

          Specifications:

          Item

          Specification

          Appearance

          White to faint yellow powder

          Melting point, ℃

          ≥58

          Assay,%

          ≥ 98

          Chroma,APHA

          ≤ 60

          Loss on drying,%

          ≤ 0.5

           

          Properties: It is white to faint yellow powder. The specific gravity is 1.07 at 25℃. It is easy soluble in toluene, chloroform, hexane, soluble in acetone etc.

          Uses: The product belongs to the class of hindered hydroxybenzoate light stabilizer. UV-2908 is most suitable for the protection of polyolefins, polycarbonate and the systems containing flame retardants and thioesters. It can be used alone or in combination with benzophenone UV stabilizer or phosphite antioxidant, showing good synergistic effect.

              The dosage of UV-2908 ranges between 0.25% and 1% are recommended for protection. It depends on the substrate and performance requirement of the final application.

          Performance Benefits

          Low volatility, minimal color contribution, good chemical stability, acid and alkali resistant, excellent compatibilty with UV absorbers, HALS, and thioesters, FDA sanctioned to 0.5% in polyolefins

          Storage: Closed storage in a cool, dry place

          Package: 20, 180kg/drum or as customer require. 

          Expiration Date: 1 years

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          0086-579-82270620

          expo@synose.com

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