Product Name: Diphenyl (2,4,6-trimethylbenzoyl)- phosphine oxide
Other Name: Diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone
CAS No: 75980-60-8
MF: C22H21O2P
MW: 348.37500
Density: 1.12 g/mL at 25 °C(lit.)
Boiling point: 519.6ºC at 760 mmHg
Melting point: 88-92 °C(lit.)
Flash point: >230 °F
Refractive index: n20/D 1.475(lit.)
UN Number: UN3077
UN Proper Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.
Transport hazard class: 9
Packing group: III
Specification
Appearance: Light yellow crystalline powder
Assay: ≥99%
Volatile matter: ≤0.30%
Application
TPO is a highly efficient, general-purpose UV photoinitiator for printing inks and adhesives on wood, metal, plastic, paper and fiber surfaces.
TPO exhibits good solubility in some common UV formulations such as acrylates, unsaturated polyester systems.
It can be used alone or in combination with other photoinitiators.
TPO cures very fast photoinitiators.
TPO is a highly efficient free radical (I) type photoinitiator, especially suitable for the field of colored systems and film thickness curing.
TPO is widely used in various coatings due to its wide absorption range.
Due to its excellent absorption properties, it is particularly suitable for screen printing inks, lithographic printing, flexographic inks, wood coatings, and 184 for use in adhesive products.
The use of this product should be based on the results of the actual experiment, the recommended addition amount is 0.5-4% w/w.
Package: 25kg/drum, can also be designed according to customer requirements.
Storage: Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
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