photoinitiator 819 (cas 162881-26-7) powder

Assay: 99% min
Appearance: Pale yellow powder
Capacity: 1000MT per year
Packaging: 20kg/Carton
Sample: available
related documents:

COA of irgacure 819 CAS 162881-26-7
TDS of irgacure 819 CAS 162881-26-7

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Photoinitiator 819
Photoinitiator 819 Quick Details
Chemical Name:Photoinitiator 819
Other name: Irgacure 819; phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
Molecular Fomula:C26H27O3P
Molecular Weight:418.46
Appearance: Pale yellow powder
Assay: 99.0%
Photoinitiator 819 Typical Properties


Pale yellow powder

Assay (HPLC)

Melting point

Volatile matter


Photoinitiator 819 function
Photoinitiator 819 can also be used in colored UV-curable plastic coatings. UV coatings have been widely used in plastic housings of various electronic and home appliance products due to their excellent performance and efficient production, but UV coatings are added after coloring. Poor curing, resulting in poor adhesion of the coating film, and poor dispersion of the pigment by the UV resin, seriously affecting the appearance of the coating film, so the traditional construction process is first painted with a solvent-based colored primer for coloring, after baking Apply UV varnish to improve the physical properties of the paint film surface.
UV-curable varnishes and paint systems, such as wood, paper, metal, plastic, fiber optics, and printing inks and prepreg systems.
Photoinitiator 819 Packaging and Shipping
Packing:20kg/carton box.
Delivery:with in 5-7 working days.
Photoinitiator 819 storage
Stored in a cool dry place out of direct sunlight.


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