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

Photoinitiator TPO is an efficient free radical (1)-type, highly efficient photoinitiator with absorption in the long wavelength range. Due to its wide absorption range, the effective absorption peak is 350 ~ 400nm, and the absorption peak is about 420nm, which is longer than that of the conventional initiator, after the light can be generated benzoyl and phosphoryl two free radicals, can initiate polymerization, so the light curing speed is fast, it also has a photo bleaching effect, suitable for thick film Deep curing and coating characteristics of no yellow, with low volatility, suitable for water-based.

General product information:

Brand Name:	Juming
Model Number:	Jm 75980-60-8
Place of Origin:	China

Custom properties:

Product Name	Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide	CAS	75980-60-8
MF	C22H21O2P	MW	348.37
EINECS	278-355-8	form	powder to crystal
color	Light yellow	purity	≥ 99%

Product Commercial Terms:

Minimum Order Quantity:	1kg
Price:	negotiation
Payment Terms:	T/T or western Union
Supply Ability:	10000kg per month
Delivery Time:	10 working days after received your payment
Packaging Details:	Packaging can be customized according to customer requirements

Specifications:

Melting point	88-92 °C(lit.)
Boiling point	519.6±60.0 °C(Predicted)
density	1.12 g/mL at 25 °C(lit.)
vapor pressure	0Pa at 25℃
refractive index	n20/D 1.475(lit.)
Fp	>230 °F
storage temp.	Sealed in dry,Room Temperature
solubility	soluble in Methanol

Applications:

Uses

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide is a photo initiator, used in many kinds of ink industries
TPO can be used in the photo-crosslinking of PMMA composite, which can further be used as a gate insulator in organic thin film transistors (OTFTs). It can also be used in the formation of UV curable urethane-acrylate coatings. It may also be used in the photoinduced reaction for the formation of organophosphine compounds, which potentially find their usage as ligands with metal catalysts and reagents.