Photoinitiator TPO/(2,4,6-trimethylbenzoyl)diphenylphosphine oxide CAS No.:75980-60-8

We are a manufacturer based in China, specializing in high-quality Photoinitiator TPO/(2,4,6-trimethylbenzoyl)diphenylphosphine oxide CAS No.:75980-60-8 for industrial clients worldwide. Technical support and custom formulation available.

Category:Chemical Additives  |  Brand:MT

Factory Direct 7-30 Days Lead Time MOQ: 100KG Global Export

Introduction

​Photoinitiator TPO (2,4,6-Trimethylbenzoyl)diphenylphosphine Oxide

CAS No.: 75980-60-8
Appearance: Yellow powder.


​Specifications

  • ​Purity: ≥99.0% (Tested: 99.62%)
  • ​Moisture: 0.14%
  • ​Loss on Drying: 0.35%
  • ​Density: 1.12 g/mL at 25 °C
  • ​UV Absorbance (260 nm): 0.03

​Applications

  • ​UV-Curable Inks & Coatings:
    • ​Screen printing inks, ​lithographic/flexographic inks, ​wood coatings.
    • Effective curing on ​white or high-titanium dioxide pigmented surfaces.
  • ​Industrial Use:
    • Widely applied in coatings due to ​excellent UV absorption and curing efficiency.

​Packaging & Transportation

  • ​Standard Packaging: 1 kg/bag; 25 kg/cardboard drum.
  • ​Custom Packaging: Available per buyer’s request.

​Storage

  • Store in a ​dry, ventilated warehouse.
  • Protect from ​sunlight, ​moisture, and ​open flames.

Summary:
Photoinitiator TPO’s ​high reactivity and ​broad compatibility make it ideal for UV-curable inks and coatings, especially in pigmented systems. Its ​low moisture and ​thermal stability ensure reliable performance, while strict ​storage protocols mitigate degradation risks.

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