Photoinitiators
Photoinitiator 2-EAQ
2-Ethylanthraquinone
The industrial anthraquinone — hydrogen peroxide carrier plus UV initiator.
Product Description
2-EAQ is the workhorse alkyl anthraquinone of the hydrogen peroxide industry, where it shuttles hydrogen in the anthraquinone oxidation process. The same photo-redox chemistry makes it an effective UV initiator and photosensitizer for radical systems, particularly with tertiary amines.
In UV curing it serves cost-sensitive ink and coating formulations and acts as sensitizer for onium salt cationic systems. Typical loadings are 1–4 wt% depending on the package.
Key Features
- Dual role: H2O2 production carrier and UV initiator
- Cost-efficient photosensitizer for onium salts
- Good solubility in aromatic solvents and acrylates
- Stable crystalline solid, easy to handle
Applications
- Hydrogen peroxide working solutions
- UV inks and coatings (economy packages)
- Cationic sensitizer systems
- Photopolymer formulations
- Anthraquinone chemistry intermediates
Specifications
| CAS No. | 84-51-5 |
|---|---|
| Molecular Formula | C16H12O2 |
| Molecular Weight | 236.27 |
| Appearance | White to pale yellow crystals |
| Assay (GC) | ≥ 99.0% |
| Melting Point | 108 – 112 °C |
Packaging & Storage
25 kg fiber drum with PE liner or 25 kg carton. Store cool, dry and protected from light; shelf life 24 months.
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