c.i. solvent blue 70 cas 12237-24-0

Product Name: C.I. Solvent Blue 70
CAS No: 12237-24-0
Appearance: Blue powder

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Comprehensive Guide to C.I. Solvent Blue 70 (CAS 12237-24-0)

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:

Request free sample kits or MSDS documentation:

  • Custom concentration adjustments
  • Regulatory compliance consulting
  • Batch-to-batch consistency guarantee
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