819 is a highly effective photoinitiator, suitable for the radiation polymerization of some unsaturated resins under UV irradiation. It is especially suitable for white formula and glass fiber reinforced polyester/styrene system and outdoor varnish system with light stabilizer, its deep curing is also available.
Product Name
Phenylbis(2,4,6-Trimethylbenzoyl)Phosphine Oxide
Multiple Names
OMNIRAD 819;
Irgacure 819;
BAPO;
Photoinitiator-TPO;
CAS No. 162881-26-7
EC No. 423-340-5
MF No. C26H27O3P
MW No. 418.47
Assay Item | Standard |
Form | Powder |
Color | Yellow |
Boiling Point | 590.0±60.0 °C(Predicted) |
Melting Point | 131 - 135 °C - lit. |
Vapour Pressure | < 0,1 hPa at 20 °C - OECD Test Guideline 104 |
Water Solubility | 0,0001 g/l at 20 °C - Regulation (EC) No. 440/2008, Annex, A.6- insoluble |
Efficient production
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