Pigment Red 4
Pigment Red 4 is an organic pigment in the β-Naphtol class. Identification: C.I. 12085, CAS 2814-77-9. Key performance: heat resistance 150, light fastness 6. Suitable for general-purpose inks, coatings and plastics where balanced performance is required.
Key Features
Technical Specifications
| C.I. NO. | 12085 |
| CAS NO. | 2814-77-9 |
| EU NO | 220-562-2 |
| Molecular Formula | C16H10CIN3O3 |
| Chemical Group | β-Naphtol |
| pH Value | 5.5-7.5 |
Physical Data & Fastness Properties
| Acid Resistance | 3 |
| Alkali Resistance | 5 |
| 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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