Table of Contents
- Irgacure 819 (CAS 162881-26-7) Powder Overview
- Technical Specifications & Comparative Analysis
- Industrial Applications & Functional Advantages
- Operational Guidelines & Safety Protocols
- Client Success Stories: UV-Curing Solutions
- Technical Consultation & Sample Request
Irgacure 819 (CAS 162881-26-7) Powder Overview
Chemical Profile
| Parameter | Specification |
|---|---|
| CAS Number | 162881-26-7 |
| Chemical Name | Bis(2,4,6-trimethylbenzoyl)-phenylphosphineoxide |
| Molecular Formula | C26H27O3P |
| Molecular Weight | 418.47 g/mol |
| Appearance | Off-white crystalline powder |
Technical Specifications & Comparative Analysis
Performance Benchmarking
| Parameter | Irgacure 819 | TPO | Irgacure 2959 |
|---|---|---|---|
| Absorption Range | 250-420 nm | 280-410 nm | 250-350 nm |
| Peak Absorption | 370 nm | 380 nm | 280 nm |
| Solubility in MMA | 3.5% | 2.8% | 1.2% |
| Recommended Loading | 0.5-3% | 1-4% | 2-5% |
Industrial Applications & Functional Advantages
UV-Curing System Applications
- 3D Printing Resins: Enables rapid prototyping with 85% faster curing speed vs. conventional initiators
- Industrial Coatings: Achieves full cure in <10 seconds under 400 mJ/cm² UV exposure
- Electronic Encapsulants
0.3% 819 achieves 98% conversion rate in LED potting compounds Technical Consultation & Sample Request
Expert Support Services
Contact our photochemistry specialists for formulation optimization:
- Email: info@vivalr.com
- Phone: (86) 15866781826
Request free technical samples with SDS documentation for your R&D evaluation.



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