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

Diphenyl(2,4,6-trimethylbenzoyl) phosphine oxide, commonly referred to as TPO, is a photoinitiator for UV-cure coatings systems. TPO is an aromatic organic phosphine oxide.

Product Details

Formula:

C22H21O2P

CAS Number:

75980-60-8

Also Known As:

TPO photoinitiator, TPO-L; TMDPO; Diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone

Structure:

157_Main_TPO-removebg-preview.png

applications:

There are both powder and liquid forms of TPO, suitable for a range of different coatings chemistries. Powder coatings, gravure inks, inkjet inks, and UV-cure acrylic resins can be quickly dried with the aid of this versatile photoinitiator.

Packaging:

Bags on pallets

Typical Specifications

Data is representative of average lots;
data taken from specific lots may vary.

Appearance

Light yellow to yellow to green powder

Density, g/cm3

1.12

Melting point, °C

88-92

Molecular weight, g/mol

348.37

Purity, %

97

Refractive index, n20/D

1.475

We have helped multiple customers, from small end users to large Fortune 500 customers, with their TPO supply requirements and can ship bulk and various packaged products to meet such needs.

Minimum order quantity 1 pallet (1200 kg)