Table of Contents
- 1,4-Pentanediol (CAS 626-95-9) Overview
- Technical Specifications & Comparative Analysis
- Industrial Applications & Functional Uses
- Operational Best Practices
- Client Implementation Case Studies
- Contact for Technical Consultation
1,4-Pentanediol (CAS 626-95-9) Overview
Key Chemical Properties
| Parameter | Specification |
|---|---|
| Chemical Name | 1,4-Pentanediol |
| CAS Number | 626-95-9 |
| Molecular Formula | C5H12O2 |
| Molecular Weight | 104.15 g/mol |
| Appearance | Colorless viscous liquid |
| Purity | ≥99.5% |
| Density (20°C) | 1.017 g/cm³ |
| Melting Point | -25°C |
| Boiling Point | 242°C |
| Solubility | Miscible with water/alcohols |
| Storage Conditions | 2-8°C in airtight containers |
Comparative Analysis with Alternative Diols
| Property | 1,4-Pentanediol | 1,5-Pentanediol | 1,3-Butanediol |
|---|---|---|---|
| Hydroxyl Value (mg KOH/g) | 1,076 | 980 | 1,220 |
| Viscosity @25°C (mPa·s) | 280 | 320 | 180 |
| Dielectric Constant | 23.6 | 21.8 | 29.3 |
| Thermal Stability | Up to 260°C | 240°C | 220°C |
Industrial Applications
Polyurethane Production
As chain extender in thermoplastic polyurethanes (TPU) improving:
- Tensile strength (+40% vs standard formulations)
- Hydrolytic stability (85% retention after 1,000h @85°C/85% RH)
- Low-temperature flexibility (-45°C)
Pharmaceutical Intermediate
Critical component in synthesis of:
- Antiviral prodrugs (e.g., Tenofovir derivatives)
- MRI contrast agents
- Controlled-release drug matrices
Cosmetic Formulations
- Humectant in moisturizers (25% better hydration vs glycerol)
- Solvent for UV filters in sunscreens
- Plasticizer in nail polish formulations
Operational Protocols
Material Handling
| Parameter | Requirement |
|---|---|
| Storage Temperature | 5-30°C |
| Container Material | Stainless steel or PET |
| Shelf Life | 24 months unopened |
| Vapor Exposure Limit | <10 ppm (8h TWA) |
Reaction Conditions
- Optimal esterification temperature: 160-180°C
- Recommended catalyst: Tin(II) octoate (0.02-0.05 wt%)
- Typical reaction time: 3-5 hours
Client Implementation Examples
Case 1: European Polyurethane Manufacturer
| Parameter | Detail |
|---|---|
| Application | TPU for automotive seals |
| Volume | 12 MT/month |
| Improvement | 35% reduction in compression set |
| Client Feedback | “Enhanced weatherability in Arctic conditions” |
Case 2: Asian Pharmaceutical Company
| Parameter | Detail |
|---|---|
| Application | Anticancer drug intermediate |
| Process | Multi-step catalytic hydrogenation |
| Yield Improvement | From 68% to 82% |
| Purity Level | 99.92% (HPLC) |
Technical Consultation & Ordering
For material specifications, SDS documentation, or bulk pricing:
- Email: info@vivalr.com
- Phone: (86) 15866781826
Request parameters:
- Required quantity (kg/ton)
- Application sector
- Packaging preferences
- Destination country
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