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Henan Tianfu Chemical Co.,Ltd


Home > Products > UV-Curing Materials > Photoinitiators > TPO Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide CAS 75980-60-8

TPO Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide CAS 75980-60-8

TPO Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide CAS 75980-60-8

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Min. Order: 10 Gram
Delivery Time: 7 Days

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  • Basic Info
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Basic Info

Model No.: TF-2029

Type: Pharmaceutical Intermediates

Appearance: Powder

Quality: Industrial

Colour: White

Additional Info

Packaging: As Buyer's Request

Productivity: 100Ton

Brand: Tianfu

Transportation: Ocean,Land,Air,DHL,TNT

Place of Origin: China

Supply Ability: 50Ton

Certificate: ISO

Port: Shanghai port,Qingdao port

Product Description

UV absorption spectra

Character and Application:

TPO appears light yellow powder melting point is at 90-94'Cand it has enough solubility in active diluents. Since it has a wide range of absorptionthe typical absorptions are at 365nm380nm400 nmand the maximum absorption wavelength is about 425nmits absorption range is wider than conventional photoinitiatorsand it can absorb well different wavelength UV-lights. It can generate two free radicals--benzoyl and phosphorus acyl which both can initiatepolymerizationthereforeits photocuring speed is fastand that it has light-decolourizatiois suitable for thick film deep curingmoreoverthe coating doesn`t turn to yellowand it is also fit for water base with the characteristic of low volatilitymild smell and anti-yellowing.

This product usually be used in the white systemcan be used in UV cure coatingsprinting inkUV curing adhesivesoptical fiber coatingslight stabilizerlight polymerization formestereo surface plate resincomposite materials and teeth filling material etc..

The usage of this product should base on the results of practicalexperimentsand the suggested volume of addition is 0.5-5 % (w/w).

In consideration of that TPO also absorbs a little in the visible regionit should be protected from light in the process of storage and transportation.



Technical index

Product name

2,4,6-trimethylbenzoyldiphenyl phosphine oxide


Photoinitiator TPO



Molecular formula


Molecular Weight



light yellow powder



Melting Point

90.0-94.0 'C

Loss Rate:Volatile Matter


Ash Content



10 g / 100 ml toluene

Cas 75980-60-8

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Product Categories : UV-Curing Materials > Photoinitiators

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