irgacure 651 cas 24650-42-8
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Description
Irgacure 651Quick Details
Chemical Name: Irgacure 651
CAS No.: 24650-42-8
Molecular Formula: C16H16O3
Irgacure 651 Structure:
Molecular weight: 256.3
Appearance: Whitecrystalline powder
Assay: ≥99%
Irgacure 651Typical Properties
| Item | Specifications | |
| Appearance | White powder or crystalline powder | |
| Purity , % | ≥99.5 | |
| Melting point range , ℃ | 64.0~67.0 | |
| Loss on drying , % | ≤0.5 | |
| Moisture , % | ≤0.5 | |
| Residue on ignition , % | ≤0.1 | |
| Transmittance , %(10% toluene solution) | 425nm | ≥95.0 |
| 450nm | ≥96.0 | |
| 500nm | ≥98.0 | |
Irgacure 651Usage
1. Irgacure 651 is a photoinitiator that is widely used in UV curing systems. Strong absorption in inks, varnishes and other systems. It is mainly used as a light curing agent for UV curing systems and is used in ink, paper and metal paints. Store in a sealed package, protected from light and heat.
2. It is widely used in the polymerization of acrylate and monomer and the polymerization and crosslinking of unsaturated polyester. It has been applied in coatings and adhesives.
For example
The combination of photoinitiator 819 and IRGACURE 651 is particularly suitable for curing polyester/styrene resin systems, such as glass fiber reinforced materials.
Irgacure 651Packaging and Shipping
PE plastic bag, lined with white PE plastic bag; 20 kg/ drum.
Irgacure 651Storage
Shelf life:12months fromdateof manufacture in original unopened packaging stored in a cool dry place.
out of direct sunlight.
