Pigment Red 3
Pigment Red 3 affords toluidine red shade, used primarily in air drying paints, extend to rigid PVC and certain printing inks.
Key Features
Technical Specifications
| C.I. NO. | 12120 |
| CAS NO. | 2425-85-62 |
| EU NO | 219-372-2 |
| Molecular Formula | C17H13N3O3 |
| Chemical Group | β-Naphtol |
| Moisture | ≤1.0 |
| 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 | 4 |
| Alkali Resistance | 5 |
| Alcohol Resistance | 4 |
| Ester Resistance | 3 |
| Benzene Resistance | 4 |
| Soap Resistance | - |
| Heat Resistance | 150 |
| Light Fastness | 6 |
Applications
- General-purpose inks
- Paints and coatings
- Plastics coloring
- Masterbatch production
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 150°C (system dependent). Ensure good ventilation and use appropriate PPE. Store sealed in a cool, dry place.
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