UV ABSORBER UV 328 CAS NO.25973-55-1

• Post Date:

  Mar 16,2023

• Expiry Date:

  Mar 15,2024

• Detailed Description:

  Cas No. :25973-55-1 Quantity: 50Metric Tons
  Price:Negotiable USD Metric Tons
  Payment Method: T/T,L/C,D/P
  Chemical name: 2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole
  CAS No.：25973-55-1
  Molecular formula：C22H29N3O
  Molecular weight：351.5
  Molecular structure
  
  
  
  Specification Appearance: Slightly yellow powder
  Assay (HPLC), %: ≥ 99
  Melting point，℃：80-88 Ash, %: ≤0.1
  Loss on drying, %: ≤ 0.5 Transmittance 460nm≥96%
  500nm≥97%
  
  Solubility (20℃, g/100ml solvent) Acetone:6 Benzene:39 Butyl carbitol:3.5 Butanol:2.5 Chloroform:44
  Xylene:34 Ethyl Acetate:20 Ethylene Glycol:4 n-Hexane:16 Methanol:0.4 Butyl acetate: 15 Methyl Ethyl Ketone(MEK):14 Methylene Chloride:56 Water＜0.01
  
  
  Application UV ABSORBER HOSORB-328 is a benzotriazole UV absorber with strong absorption of ultraviolet radiation in the 300-400nm region. It offers excellent light stability to organic substance, good compatibility and outstanding solubility in plastics. It is used in the light stabilization of a wide range of plastics, including polyolefins, polyurethanes, PVC, acrylics, styrenic polymers, unsaturated polyesters, and others. It is also useful in the light stabilization of adhesives and solvent-based coatings.
  
  
  Packing 25kg/fiber drum; 25kg/carton, or as per customer’s request.
  
  
  Storage Containers should be kept tightly closed when not in use. Store it in a dry, cool, well-ventilated shady place.
  
  
  
  Recommended Dosage Unsaturated Polyester : 0.2-0.5%
  Rigid PVC : 0.2-0.5%
  Plasticized PVC : 0.1-0.3% Polyurethane : 0.2-1.0%
  Polyamide : 0.2-0.5%

• CAS Registry Number:

  25973-55-1

• 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;

• Molecular Formula:

  C₂₂H₂₉N₃O

• Molecular Weight:

  351.4852

• Molecular Structure:

  

• Hazard Symbols:

   Xi:Irritant;
  

• Risk Codes:

  R36/37/38:;
  

• Safety Description:

  S26:;
  S36:;
  

• Company:

  Guangzhou Chengshuai New Material Co.,Ltd.     [ China ]        

• Contact:

  David

• Tel:

  862034708468

• Fax:

• Email:

  info@hhochem.com