PHOTOINITIATOR 819 (CAS:162881-26-7)

CAS No.: [162881-26-7]  Bis(2,4,6-trimethylbenzoyl)-phenylphosphineoxide

Lotcure 819 is a versatile  photoinitiator for radical polymerization of unsaturated resins upon UV and near visible light exposure. With the below three advantages, has successfully solved the problems that often frustrate formulators: I. Good performance of curing pigmented formulations and in outdoor applications, it can be formulated with UV absorbers to gain good weather stability, while without harming the cure speed. II. Good through-curing of thick coating film. III. To give a clean white appearance in contrast to the off-white color

associated with other long wavelength absorption photoinitiators.

C₂₆ H₂₇O₃ P

Physical Properties

Solubility characteristics (% g/100g at 20°C)

Acetone: 14

Butylacetate: 6

Methanol: 3

Toluene: 22

Hexanedioldiacrylate (HDDA): 9

Oligomeric acrylate: 3

Packaging and Handling

Packaging: 20Kg/Carton, 600Kg/Pallet or on request

Store the product in a cool, dry, well-ventilated area away from incompatible materials. Unless stated, proper storage will permit usage of the product for 12 months from the manufacture date. For

additional handling and toxicological information, consult the Material Safety Data Sheet.