Photoinitiator 819 CAS:162881-26-7
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Category：Chemical Additives Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Photoinitiator 819 (Phenylbis(2,4,6-trimethylbenzoyl)phosphine Oxide)
CAS No.: 162881-26-7
Appearance: Yellow powder.
Specifications
- Purity: ≥99.0%
- Molecular Formula: C₂₆H₂₇O₃P
- Molecular Weight: 418.46 g/mol
- EINECS No.: 423-340-5
- Melting Point: 131–135 °C (lit.)
- Boiling Point: 590.0 ± 60.0 °C
- Density: 1.17 ± 0.1 g/cm³
Applications
- UV-Curable Systems:
- UV varnishes, lacquers, and printing inks for substrates like wood, paper, metal, plastics, and fiber optics.
- Used in prepreg systems for composite materials.
Packaging & Transportation
- Standard Packaging: 25 kg/drum.
- Custom Packaging: Available per buyer’s requirement.
Storage
- Store in a cool, ventilated place.
- Protect from sunlight, heat, and moisture.
Summary:
Photoinitiator 819 is a high-performance photoinitiator for UV-curable coatings and composites. Its broad reactivity and thermal stability enable efficient curing across diverse industrial applications, while strict storage protocols ensure long-term stability.
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