Omnirad TPO-L

IGM Resins USA Inc.

IGM Resins USA Inc. · Omnirad

Omnirad TPO-L is a highly efficient liquid type I photoinitiator used to initiate radical polymerization of unsaturated oligomers such as acrylates and unsaturated polyesters containing styrene, after exposure to UV light. It is especially suitable for use in pigmented systems, including those containing TiO2, and thick film layers due to its absorption in the long wave region of the UV spectrum.

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Specifications

Identifiers

Chemical name
Ethyl(2,4,6-Trimethylbenzoyl)-phenyl Phosphinate
CAS number(s)
84434-11-7
EC number
282-810-6
Molecular formula
C18H21O3P
InChI key
ZMDDERVSCYEKPQ-UHFFFAOYSA-N
INCI name
Ethyl Phenyl(2,4,6-trimethylbenzoyl)phosphinate
Synonyms
2,4,6-Trimethylbenzoylethoxyphenylphosphine Oxide, Ethyl Phenyl(2,4,6-trimethylbenzoyl)phosphinate, Free Radical Photoinitiator - Type I

Technical specifications

Properties

PropertyValueUnit
Physical StateLiquid-
AppearanceViscous-
ColorYellow-
Molecular Weight316.4g/mol
Melting Point-12°C
Boiling Point257.4°C
Flash Point144 (closed cup)°C
Vapor Pressure0 (at 20°C)hPa
Relative Density1.13 (at 20°C)-
Water Solubility0.035 (at 20°C)g/L
Partition Coefficientlog Pow 2.91 (at 25°C)-
Autoignition Temperature423°C
Dynamic viscosity1483 (at 20°C)mPa s

Specifications

Test ConditionSpecificationValueUnitTest Method
-AppearanceYellow Liquid (Pass)-Visual
-Purity≥ 98.0%HPLC Analysis
-Volatiles≤ 1.0%Loss on Drying
-Clarity of SolutionPass-Visual
-Acid Value≤ 1.0mg KOH/gTitration
-Shelf LifeDurable for at least 24 months--
Industries
CASECeramics & glassFurniture & WoodPackaging & PrintingPaints & CoatingsPlastics & RubberPulp & Paper
Product groups
PhotoinitiatorsCoating Additives
Applications
Radiation-curable coatingsUV-curable inks
Functions
Curing agentPhotoinitiator
Market segments
Protective coatingsPrinting inks & coatings

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