15-Crown-5 CAS 33100-27-5

Chemical Name: 15-Crown-5
Synonyms: 1,4,7,10,13-Pentaoxacyclopentadecane; Lead ionophore V
CAS No.: 33100-27-5
Molecular Formula: C10H20O5
Molecular Weight: 220.26
Appearance: Liquid

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15-Crown-5 (CAS 33100-27-5) Technical Guide

Table of Contents

1. Product Specifications & Comparative Analysis

Parameter 15-Crown-5 Competitor A Competitor B
CAS Number 33100-27-5 N/A N/A
Molecular Formula C10H20O5 C12H24O6 C8H16O4
Molecular Weight 220.26 g/mol 248.32 g/mol 176.21 g/mol
Appearance Colorless to pale yellow liquid White crystalline Clear liquid
Melting Point -20°C 38-39.5°C -15°C
Storage -20°C refrigeration Room temperature 4°C

2. Functional Applications

Coordination Chemistry

Forms stable complexes with alkali metals (Na+ selectivity: Kd = 103-104), enabling:

  • Phase-transfer catalysis efficiency: 85-92% yield improvement
  • Ion-selective electrode membranes with Nernstian response (50-55 mV/decade)

Industrial Separation

  • Metal recovery rates: 98.5% for Na+ in lithium brine processing
  • Rare earth element purification: 99.9% purity achievement

Advanced Material Synthesis

  • Polymer electrolyte enhancement: 3x ionic conductivity increase
  • Nanoparticle stabilization: <50 nm size distribution

3. Operational Guidelines

Application Concentration Solvent Compatibility Optimal Temperature
Ion Extraction 0.1-0.5 M Dichloromethane/Chloroform 25-40°C
Catalysis 5-10 mol% THF/Acetonitrile 60-80°C

4. Industry Case Studies

Pharmaceutical Intermediate Purification

Client: Top 10 API manufacturer
Challenge: 92% purity limitation in sodium-containing intermediates
Solution: 0.3M 15-Crown-5 in toluene extraction system
Outcome: 99.5% final purity with 40% process time reduction

Battery Material Synthesis

Client: Lithium-ion battery producer
Application: Sodium ion suppression in electrolyte
Result: 300-cycle stability improvement (85% capacity retention)

5. Client Success Stories

Case 1: Specialty Chemical Producer

  • Location: Shanghai, China
  • Application: Potassium-sodium separation
  • Throughput: 15 tons/month
  • Performance: 99.2% separation efficiency maintained for 18 months

Case 2: European Research Institute

  • Application: Molecular sensor development
  • Key Metric: 10-8 M detection limit for Na+
  • Outcome: 3 patents filed within 2 years

6. Commercial Inquiry

Available Specifications:

  • Standard Grades: 99%, 99.5%, 99.9% purity
  • Packaging: 1kg, 5kg, 25kg sealed containers
  • Customization: Concentration solutions (0.1M-2.0M)

Contact Technical Team:
Email: info@vivalr.com
Tel: (86) 15866781826
Request SDS & COA: Available within 24h

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