苯基双（2,4,6-三甲基苯甲酰基）氧化膦

Product

Photoinitiator 819

Chemical name

Bis（2,4,6-Trimethylbenzoyl）Phenyl Phosphine oxide

Molecular formula

C₂₆H₂₇O₃P   

CAS No.

162881-26-7

Quality indicators

Appearance

light yellow powder

Melting point

130-135℃

Molecular Weight

418.4

Volatile

0.20%max

Ash

≤0.1%

Loss on drying

≤0.2%

Acid Value

≤0.1 mg KOH/g

Application

PI-819 is a kind of efficient photointiaitor, and provide excellent curing effect and yellowing resistance. The free radical polymerization of some unsaturated resins was initiated by ultraviolet and near-visible light irradiation. With the following three main features: 1.  It can be used in combination with UV absorb-er to increase weathering resistance in outdoor applications and colored systems. 2. Suitable for deep curing; 3. whiter and cleaner than other long-wavelength photoinitiator

Storage and packing

This product should be sealed and stored in a closed, dry, dark place and avoid sunlight. 20 kg cardboard or 30 card-boards each pallet.