octadecanedioic acid cas 871-70-5

Chemical Name: octadecanedioic acid
CAS No.: 871-70-5
Molecular Fomula: C18H34O4
Molecular weight:314.46
Appearance: white powder
Assay: 99%

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Octadecanedioic Acid (CAS 871-70-5): Comprehensive Guide, Applications, and Case Studies

Table of Contents

1. Product Overview & Technical Specifications

Parameter Octadecanedioic Acid Hexadecanedioic Acid Eicosanedioic Acid
CAS Number 871-70-5 505-54-4 2420-92-8
Molecular Formula C18H34O4 C16H30O4 C20H38O4
Melting Point 128-131°C 124-126°C 132-134°C
Purity Grade ≥99% (Industrial Grade)

2. Key Applications & Industry Uses

Primary Applications:

  • Polymer Industry: Key monomer for high-performance polyamides and polyesters
  • Lubricant Additives: Enhances thermal stability in synthetic lubricants
  • Coating Formulations: Improves flexibility and corrosion resistance
  • Pharmaceutical Intermediates: Used in controlled-release drug formulations

3. Performance Comparison with Similar Compounds

Property Octadecanedioic Acid Dodecanedioic Acid Adipic Acid
Carbon Chain Length 18 12 6
Solubility in Water 0.02 g/L 0.15 g/L 15 g/L
Thermal Stability Excellent Good Moderate

4. Operational Guidelines & Best Practices

Storage Recommendations:

  • Store in airtight containers at 15-25°C
  • Maximum shelf life: 24 months in original packaging

Processing Parameters:

  • Optimal reaction temperature: 160-180°C
  • Recommended catalyst: Tin(II) chloride (0.5-1.0 wt%)

5. Real-World Case Studies

Case Study 1: High-Temperature Polymer Development

  • Client: European Specialty Polymers Manufacturer
  • Challenge: Needed thermal stability above 200°C
  • Solution: Incorporated 15% octadecanedioic acid in copolymer
  • Result: Achieved continuous service at 220°C

Case Study 2: Advanced Lubricant Formulation

  • Client: Asian Lubricant Producer
  • Challenge: Reduce wear in industrial gear oils
  • Solution: 2% additive package with octadecanedioic acid derivatives
  • Result: 40% reduction in component wear rates

6. Contact for Technical Consultation

For formulation assistance or bulk pricing inquiries:

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