Chemical name:2,4,6-trimethylbenzoyldiphenyl phosphine oxide

Structure:

Molecular formula:C22H21O2P

Molecular weight:348.37

CAS no.:75980-60-8

Specification

Item	Spec.
Appearance	Sliightly yellowish crystalline powder
Melting point	91-94°C
Assay	≥98.0%
Volatile	≤0.2%
Ash	≤0.1%
Absorption(nm)	273, 370

Packaging
20KG per drum with PE linner

Storage
It should be kept in a dry, close and dark save

Usage
It is a highly efficient curing agent which is used to initiate radical photopolymerisation of unsaturated resins such as those based on a prepolymer - e.g. acrylates - in combination with mono- or multifunctional monomers as reactive thinnersParticularlly used in UPES wood top and intermediate coat