global trader in bulk supply Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate（TPO-L）Buy 84434-11-7 CAS NO.84434-11-7

1.Specifications for Photoinitiator ITX:

Appearance: Pale yellow powder

Assay: 99% min

Loss on drying: 0.5 % w/w max

Melting point range :56 - 72°C

Gardner colour: 9 max

Ε¦ at λ 383 nm:236 (Solvent: methanol)

Ε¦ at λ 289 nm:166 (Solvent: methanol)

Ε¦ at λ 259 nm :1789 (Solvent: methanol)

Ε¦ at λ 220 nm :594 (Solvent: methanol)

2.Advantage:

Photoinitiator ITX is a highly efficient photoinitiator which, when used in conjunction with tertiary amine synergists, induces the rapid photo-polymerisation of suitable resin formulations. Suggested levels of use are 0.25 – 3% w/w
photoinitiator ITX together with 2 – 5% w/w amine synergist such as photoinitiator EDB or DMB (quantities vary depending on individual formulations and applications).

advantages:
Has good solubility in most common organic solvents and UV curable monomers.
UV absorption spectrum shows two major absorption bands.
Allows possibility of producing a single liquid additive comprising both initiator and synergist.
Can act as an efficient long wave sensitiser for Type I and Type II photoinitiators.
Absorption at 258 nm promotes surface cure of films.
Absorption at 383 nm promotes excellent depth cure in pigmented and thick films