Photoinitiator TPO, CAS No.: 75980-60-8
Photoinitiator TPO, CAS 75980-60-8, is a Type I radical photoinitiator belonging to the acylphosphine oxide family.
Chemical Name: Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
Alternative Chemical Name: 2,4,6-Trimethylbenzoyldiphenylphosphine oxide
Common Name: TPO
CAS No.: 75980-60-8
EC No.: 278-355-8
Molecular Formula: C22H21O2P
Molecular Weight: 348.38 g/mol
Photoinitiator Type: Type I radical photoinitiator
Chemical Family: Acylphosphine oxide
Curing Technology: UV curing and UV LED curing

Appearance: Pale yellow crystals or powder
Purity: 99.0% min (HPLC)
Melting Point: 91-94℃
Volatile matter: 0.20%max
Mainly used for unsaturated styrene polyester and acrylic resinUV Curing, its UV spectrum is in the long wave region, which can cure white paint and titanium dioxide(TiO2)
Allow thick coatings of pigment to fully cure.
20kg/carton.
7500MT/year.
Store in a cool, dry and well-ventilated area.
Keep the container tightly closed when not in use.
Protect from direct sunlight, excessive heat and moisture.
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