Omnirad 1173
IGM Resins USA Inc. · Omnirad
Omnirad 1173 is a versatile and highly efficient liquid photoinitiator used to initiate the photopolymerization of chemically unsaturated prepolymers, such as acrylates, in combination with mono- or multi-functional monomers. It is known for its excellent compatibility and is especially suitable for UV-curable clear coatings, providing minimal yellowing even after prolonged sunlight exposure.
- Suitable for UV applications
- High efficiency
- Yellowing resistance
- Versatile applications
- High compatibility
Specifications
Identifiers
- Chemical name
- 2-Hydroxy-2-Methylpropiophenone
- CAS number(s)
- 7473-98-5
- EC number
- 231-272-0
- Molecular formula
- C10H12O2
- InChI key
- XMLYCEVDHLAQEL-UHFFFAOYSA-N
- INCI name
- 2-Hydroxy-2-methyl-1-phenylpropanone
- Synonyms
- 2-Hydroxy-2-methylpropiophenone, 1-Propanone, 2-hydroxy-2-methyl-1-phenyl-, 1-Phenyl-2-hydroxy-2-methylpropan-1-one, Free Radical Photoinitiator - Type I
Technical specifications
Properties
| Property | Value | Unit |
|---|---|---|
| Physical State | Liquid | - |
| Appearance | Clear | - |
| Color | Colorless to yellow | - |
| Melting Point/Freezing Point | -60 | °C |
| Boiling Point/Boiling Range | 252.1 | °C |
| Flash Point | 122 | °C |
| Vapor Pressure | 0.0057 (at 20°C) | hPa |
| Relative Density | 1.076 (at 20°C) | - |
| Water Solubility | 13.3 (at 20°C) | g/L |
| Partition Coefficient | log Pow 1.62 (at 25°C) | - |
| Autoignition Temperature | 446 | °C |
| Dynamic viscosity | 25 (at 20°C) | mPa s |
| Molecular Weight | 164.2 | g/mol |
Specifications
| Test Condition | Specification | Value | Unit | Test Method |
|---|---|---|---|---|
| - | Appearance | Colorless to Pale Yellow Liquid (Pass) | - | Visual |
| - | Color | ≤ 400 | - | APHA, ISO 6271 |
| - | Purity | ≥ 98.0 | % | GC Analysis |
| at 425 nm | Transmittance | ≥ 98.0 | % | Spectrophotometer, 5g/100ml ETAC |
| - | Odor | Slight | - | - |
| at 20 °C | Density | ~1.08 | g/cm³ | - |
| - | Melting Point | 4 | °C | - |
| at 0.13 mbar | Boiling Point | 80-81 | °C | - |
| - | Flash Point | >100 | °C | - |
| - | Miscibility | >50 g/100 g in most common organic solvents and acrylate-based monomers, practically insoluble in water | - | - |
| - | Shelf Life | Durable for at least 36 months | - | - |
- Product groups
- PhotoinitiatorsCoating Additives
- Applications
- Printing inksGeneral coatingsRadiation-curable coatingsLight-cured polymersAdhesives & sealants formulations
- Functions
- Curing agentPhotoinitiator
- Market segments
- Protective coatingsPrinting inks & coatings
Documents
- Request a copy
Technical Data Sheet (TDS)
Specifications & performance data
- Request a copy
Safety Data Sheet (SDS)
Safety information & handling