ChemFine International
ChemFine International
Perfluoroeicosane (CAS 37589-57-4), with the molecular formula C20F42, is a heavyweight linear perfluorinated alkane. It appears as a white, waxy crystalline solid at room temperature. As one of the longer-chain perfluoroalkanes, it possesses extreme thermal stability and the highest degree of chemical resistance. The strong carbon-fluorine bonds throughout the 20-carbon chain make it virtually indestructible by standard chemical agents. It is completely hydrophobic (water-repelling) and lipophobic (oil-repelling), providing a unique surface energy profile for high-end industrial applications where liquid fluorocarbons are too volatile.
Extreme Chemical Inertness: Resistant to aggressive industrial chemicals, including concentrated acids and strong oxidizers.
Exceptional Thermal Range: Remains stable at temperatures exceeding 200 degrees C, significantly outperforming hydrocarbon-based waxes.
Ultra-Low Surface Energy: Provides a permanent non-stick and moisture-barrier surface for industrial components.
Near-Zero Volatility: Its high molecular weight ensures zero evaporation loss even in high-vacuum or high-heat operations.
Superior Dielectric Properties: Acts as an excellent electrical insulator for high-frequency and high-voltage applications.
High Purity (≥ 98.0%): Chemfine maintains rigorous quality control to ensure a consistent crystalline structure.
Specialty High-Temperature Lubricants
Used as a solid-phase lubricant or friction-reducing additive in greases designed for industrial ovens, kilns, and aerospace machinery.
Chemical-Resistant Protective Coatings
Applied as a primary barrier material in coatings that protect metal substrates from extreme chemical corrosion and acid rain in industrial plants.
Electronic Insulation and Dielectric Barriers
Functions as a high-performance insulating wax or moisture-proof sealant for sensitive microelectronic components and high-frequency industrial sensors.
Precision Mold Release Agents
Used as a high-efficiency, non-migratory release agent in the molding of advanced composites and high-temperature plastics.
Aerospace Component Protection
Acts as a non-volatile protective layer for external aerospace components to prevent ice adhesion and environmental degradation.
Standard industrial packaging options for Perfluoroeicosane include:
1kg or 5kg high-purity wide-mouth HDPE bottles or specialized fluorinated jars.
25kg UN-approved fiber drums with anti-static and moisture-barrier plastic liners.
Custom small-volume packaging is available for specialized industrial pilot projects.
All products are nitrogen-purged before sealing to maintain maximum dryness and purity.
Perfluoroeicosane must be stored in a cool, dry, and well-ventilated warehouse. Containers should be kept tightly sealed to prevent environmental contamination. While it is chemically inert, it should be kept away from molten alkali metals and strong reducing agents. Due to its high melting point, it is exceptionally stable at standard ambient temperatures and does not require climate-controlled shipping.
n-Perfluoroeicosane, Dotetracontrafluoroeicosane, C20F42, Perfluoro-n-eicosane.
| Property | Value/Description |
|---|---|
| CAS Number | 37589-57-4 |
| Molecular Formula | C20F42 |
| Molecular Weight | 1038.2 |
| Appearance | White crystalline solid/wax |
| Melting Point | 160 degrees C - 165 degrees C |
| Boiling Point | ~280 degrees C - 290 degrees C |
| Density | ~2.0 g/cm3 (as a solid) |
| Flash Point | None |
| Solubility | Insoluble in water; soluble in hot fluorinated solvents |
| Test Item | Specification Standard |
|---|---|
| Appearance | White Crystalline Powder |
| Assay (GC) | ≥ 98.0% |
| Melting Range | 160 degrees C - 166 degrees C |
| Moisture (KF) | ≤ 50 ppm |
| Volatile Matter | ≤ 0.05% |
| Color (APHA, molten) | ≤ 30 |
Perfluorohexadecane – CAS 355-49-7
Perfluorododecane – CAS 307-59-5
Perfluorotetradecane – CAS 307-62-0
Perfluorotributylamine (PFTBA) – CAS 311-89-7
Perfluorodecalin – CAS 306-94-5
PTFE Micronized Wax
Perfluorooctane – CAS 307-34-6
Perfluorohexane – CAS 355-42-0
Perfluoropolyether (PFPE) Fluids
Perfluorodotetracontane
Lubricant Additive Use
Q: Why use Perfluoroeicosane in lubricants instead of standard PTFE?
A: Perfluoroeicosane is a pure molecular compound that can be dissolved in fluorinated carrier oils at high temperatures, allowing for more uniform molecular-level integration than dispersed PTFE particles.
Protective Coating Use
Q: How does this solid improve anti-corrosion coatings?
A: Its C20 chain length provides a dense, hydrophobic barrier that prevents corrosive ions from reaching the metal surface, even in high-heat environments.
Electronic Insulation Use
Q: Can Perfluoroeicosane be used for circuit board potting?
A: Yes, its high melting point and non-conductive nature make it an excellent choice for potting high-temperature electronic components to prevent electrical leakage.
Mold Release Use
Q: Does Perfluoroeicosane leave residues on molded parts?
A: No. Because it is chemically inert and has a very high melting point, it provides a clean release without transferring grease or oil to the final product.
Aerospace Protection Use
Q: Is Perfluoroeicosane stable under UV exposure in aerospace?
A: Yes. The C-F bond is extremely resistant to UV degradation, ensuring the protective layer does not yellow or crack during high-altitude operation.
| Synonyms: | n-Perfluoroeicosane, Dotetracontrafluoroeicosane, C20F42, Perfluoro-n-eicosane. |
| CAS NO.: | 37589-57-4 |
| Molecular Formula: | C20F42 |
| Structure: |  |
| Molecular Weight: | 1038.2 |
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