Comprehensive Guide to C.I. Solvent Blue 70 (CAS 12237-24-0)
Table of Contents
1. Product Overview & Key Specifications
C.I. Solvent Blue 70 (CAS 12237-24-0) is a high-performance anthraquinone-based solvent dye widely used in industrial coloration. Key parameters:
| Parameter | Specification |
|---|---|
| Molecular Formula | C₂₈H₂₄N₂O₂ |
| Molecular Weight | 420.5 g/mol |
| Melting Point | 245-250°C |
| Solubility | Excellent in organic solvents (>5% in toluene) |
| Lightfastness | 7-8 (ISO 105-B02) |
Competitive Comparison
| Property | Solvent Blue 70 | Solvent Blue 35 | Solvent Blue 59 |
|---|---|---|---|
| Thermal Stability | 300°C | 280°C | 260°C |
| Migration Resistance | Excellent | Good | Moderate |
2. Applications & Industry Uses
Primary Applications:
- Plastics: PVC, PS, and polycarbonate coloration
- Printing Inks: Security printing and packaging
- Automotive: Instrument panel dyes
- Industrial Coatings: Metal decoration coatings
Technical Advantages:
- Superior dispersion in polymer matrices
- Non-bleeding characteristics in lubricants
- Excellent compatibility with epoxy systems
3. Performance Comparison with Similar Dyes
| Dye Type | Color Strength (%) | Weathering Resistance | FDA Compliance |
|---|---|---|---|
| Solvent Blue 70 | 100% (Reference) | 2,000+ hours Xenon arc | 21 CFR 178.3297 |
| Solvent Blue 36 | 85% | 1,500 hours | Non-compliant |
4. Usage Guidelines & Best Practices
Recommended Formulation Parameters:
| Application | Loading Rate | Processing Temp |
|---|---|---|
| Plastic Masterbatch | 0.05-0.2% | 200-240°C |
| Ink Systems | 1.5-3.0% | Room Temp |
Safety Handling:
- Use NIOSH-approved respirator when handling powder
- Maintain workplace concentration <5 mg/m³
5. Real-World Case Studies
Case 1: Automotive Plastic Component Manufacturer
- Client: Top-tier German auto parts supplier
- Challenge: Color shift under dashboard heat
- Solution: 0.15% Solvent Blue 70 masterbatch
- Result: 40% improvement in thermal stability
Case 2: Security Ink Producer
- Client: European banknote printing house
- Challenge: UV detection requirements
- Solution: Customized solvent blend formulation
- Result: Achieved Class 1 security certification
6. Technical Support & Inquiry
For technical documents or customized solutions:
- Email: info@vivalr.com
- Phone: (86) 15866781826
Request free sample kits or MSDS documentation:
- Custom concentration adjustments
- Regulatory compliance consulting
- Batch-to-batch consistency guarantee



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