Pigment Yellow 138
Origo Chemical is the most reliable manufacturers of pigment yellow 138 with excellent heat stability, light and weather fastness available in best price.
Key Features
Technical Specifications
| C.I. NO. | 56300 |
| CAS NO. | 30125-47-4 |
| EU NO | 250-063-5 |
| Molecular Formula | C26H6CL8N2O4 |
| Chemical Group | Quinophthalone |
| Moisture | ≤1.5 |
| Water Soluble Matter | ≤1.0 |
| Electric Conductivity | ≤500 |
| Fineness (80 mesh) | ≤5.0 |
| pH Value | 6.5-7.5 |
Physical Data & Fastness Properties
| Acid Resistance | 5 |
| Alkali Resistance | 5 |
| Alcohol Resistance | 5 |
| Ester Resistance | 5 |
| Benzene Resistance | 5 |
| Soap Resistance | 5 |
| Heat Resistance | 290 |
| Light Fastness | 8 |
Applications
- Automotive OEM/refinish coatings
- Powder coatings
- Printing inks (gravure/flexo)
- Packaging inks
- Paints and coatings
- Plastics coloring
Usage Instructions
Recommended dosage: 0.3–3.0% depending on color strength and application. For plastics/masterbatch, pre-disperse with suitable carrier resin and dispersant; for inks/coatings, mill to target fineness. Processing temperature should be controlled below 290°C (system dependent). Ensure good ventilation and use appropriate PPE. Store sealed in a cool, dry place.
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