PHOTOINITIATOR TPO CAS NO.75980-60-8

• Post Date:

  Mar 16,2023

• Expiry Date:

  Mar 15,2024

• Detailed Description:

  Cas No. :75980-60-8 Quantity: 50Metric Tons
  Price:Negotiable USD Metric Tons
  Payment Method: T/T,L/C,D/P
  PHOTOINITIATOR TPO
  Technical Data Sheet (TDS)
  
  Chemistry
  Chemical name: Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
  CAS No.：75980-60-8
  Molecular formular：C22H21O2P
  Molecular weight：348.37
  Molecular structure
  
  
  Specification
  Appearance: Pale yellow crystal powder
  Purity, %: ≥99.0 (HPLC)
  Melting point，℃：91.0-94.0
  Volatility, %: ≤0.2
  Acid value (mgKOH/g): ≤0.5
  
  
  Application
  TPO is an efficient free radical photoinitiator with absorption in a long wavelength range. Its effective absorption peak is 350-400nm and it always absorbs about 420nm. Its absorption peak is longer than that of the conventional initiator. After irradiation, two free radicals, benzoyl and phosphatidyl, can be formed, which can initiate polymerization. It is a photoinitiator for curing styrene-based unsaturated polyesters and acrylic resins. Its absorption in the long-wave region of the UV spectrum can fully cure even white paints and surfaces pigmented with TiO2. Such coatings are characterized by particularly low yellowing. TPO can also be used to cure clear coatings and is particularly suitable when low-odor products are desired. Recommended applications: screen inks white coatings, flexo inks wood coatings, overprint varnishes printing plates etc.The thermal stability of TPO is excellent. It is heated to 180℃ without chemical reaction and has good storage stability.
  
  
  Package
  20kg/carton, or as per customer’s request.
  
  
  Storage
  TPO is sensitive to visible light and any exposure to sunlight should beavoided. Kept at low, ambient temperature and dry conditions.Avoid contacting with strong oxidants.The product is stable for 2 years if stored in original,sealed containers under above-mentioned conditions.
  
  
  Recommended Dosage
  0.3-0.5% in clear coatings and 0.5-3.0% in pigmented coatings.
  

• CAS Registry Number:

  75980-60-8

• Synonyms:

  ;2,4,6-Trimethylbenzoyldiphenyl Phosphine Oxide;2,4,6-Trimethylbenzoyldiphenylphosphine oxide;TPO;Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide;Photoinitiator-TPO;(diphenylphosphoryl)(2,4,6-trimethylphenyl)methanone;Diphenyl (2,4,6-trimethylbenzoyl)-phosphine oxide;(2,4,6-trimethyl benzoyl) diphenyl phosphine oxide;Photoinitiator TPO;Trimethyl-Benzoyl-Diphenyl-Phosphine-oxide;

• Molecular Formula:

  C₂₂H₂₁O₂P

• Molecular Weight:

  348.3747

• Molecular Structure:

  

• Safety Description:

  S22:;
  S24/25:;
  

• Company:

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

• Contact:

  David

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