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Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide is a Type I photoinitiator best known for it's through cure abilities. It is soluble in most monomers, oligomers and pre-polymers but insoluble in H2O.
Unit of Measure

Typical Properties

Specific Gravity

N/A 1.12

Melting Point

N/A 90 ºC194 ºF

Performance Properties

N/A Excellent in white pigmented systems and thick clear coatings Excellent through cure Low yellowing

Appearance

N/A Pale yellow crystalline powder

Chemical Class

N/A Mono Acyl phosphine

Boiling Point

N/A >250 ºC

Odor

N/A Faint, characteristic

Abs. Peaks

N/A 295 368 380 393

Usage Levels

N/A 0.5 to 4.0 %

Typical Applications

N/A Coatings for graphic arts, wood, plastics, metals. Printing inks such as inkjet, flexo, screen, litho and dry offset. Adhesives.