UV ABSORBER UV 234 CAS NO.70321-86-7

• Post Date:

  Jul 07,2022

• Expiry Date:

  Jul 07,2023

• Detailed Description:

  Cas No. :70321-86-7 Quantity: 50Metric Tons
  Price:Negotiable USD Kilograms
  Payment Method: T/T,L/C,D/P
  Chemical name: 2-[2'-hydroxy-3',5'-bis(-dimethyl benzyl)-phenyl]benzotriazole
  CAS No.：70321-86-7
  Molecular formular：C30H29N3O
  Molecular weight： 447.6
  
  Specification
  Appearance: Light yellow powder
  Purity, %: ≥ 99
  Melting point，℃：139.5-141
  Volatile matter, %: ≤ 0.5
  Ash, %: ≤ 0.05
  Transmittance 450nm≥97%
  500nm≥98%
  
  Solubility (20℃, g/100ml solvent)
  Acetone:2 n-Hexane: 0.6 Benzene: 10 Ethyl acetate: 4 Toluene: 20
  Chloroform: 35 Methylene chloride: 34 Ethanol: 0.3 Cyclohexane: 5 MEK: 13
  Methanol＜0.1 Water＜0.01
  
  Application
  UV ABSORBER HOSORB-234 is a high molecular weight ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class. It has low volatility at high temperatures and high resistance to thermal degradation for compounding and molding applications. It is highly effective for polymers processed at high temperature such as polycarbonate, polyester, polyacetal, PPO, polyamide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers etc.. It is also useful in the light stabilization of powder coatings 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
  Polyester: 0.3-0.5%
  PC: 0.3-0.5%
  PVC: 0.25-0.5%

• CAS Registry Number:

  70321-86-7

• Synonyms:

  ;UV-234;2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol;2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1 phenylethyl)phenol;UV absorber-234;2-(2H-benzotriazol-2-yl)-4,6-bis(2-phenylpropan-2-yl)phenol;3,3'-(3,3'-dimethoxybiphenyl-4,4'-diyl)bis(2,5-diphenyl-2H-tetrazol-3-ium) dichloride - 1H-benzotriazole (1:1);UV Abosorber 234;UV 234;Hydroxy-Bis(Dimethyl-benzyl)-Phenyl-Benzotriazole;

• Molecular Formula:

  C₄₆H₃₇Cl₂N₁₁O₂

• Molecular Weight:

  846.7645

• 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