Photoinitiator TPO

Product Name

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide

Product Code

TPO

CAS No.

75980-60-8

Chemical Name

2,4,6-Trimethyl benzoyldiphenyl phosphine oxide

Formula

C22H21O2P

Molecular Weight

348.37 

Specification

Appearance: Yellow crystal

Melting Point: 91-95 °C

Loss on Drying: 0.2% max.

Ash: 0.1% max.

Assay:99.0% min

Packing

20kg/carton

Application

TPO is a photoinitiator for curing styrene-based unsaturated polyesters and acrylic resins. Its absorption in the long-wave region of the UV spectrum can fully cure even white paints and surfaces pigmented with TiO2.