Product Description
Chemical Name: 3-Ethoxyperfluoro(2,4-dimethylpentane)
Other Name: Perfluoroheptyl ether, Ethyl perfluoroheptyl ether
Equivalent Product: 3M Novec HFE-7500
CAS No: 1032934-86-3
Perfluoroheptyl ether (TPD-HFE-7500, CAS 1032934-86-3) is a high-purity, non-flammable hydrofluoroether fluid and a reliable 3M Novec 7500 replacement and 3M Novec 7500 alternative. It features ultra-low global warming potential and zero ozone depletion capability, fully complying with global environmental protection regulations.
This product inherits the outstanding chemical inertness and superior dielectric performance of perfluorocarbons (PFCs) and perfluoropolyethers (PFPEs). It is insoluble in water, and will not corrode most metals, plastics and elastomers. Classified as a non-VOC substance exempted by the U.S. EPA, it has become an ideal substitute for traditional perfluorinated fluids. With stable thermal performance, excellent fluid characteristics and comprehensive material compatibility, it is suitable for long-term continuous operation in high-end industrial cooling, precision testing and chemical production scenarios.


Key Features
- High Safety & Flame Resistance: Colorless liquid, completely non-flammable with no flash point; high autoignition temperature ensures safe operation under complex working conditions.
- Excellent Stability: Outstanding thermal stability and chemical inertness, resistant to decomposition and chemical reaction during long-term use.
- Superior Physical Properties: High density, low kinematic viscosity and ultra-low surface tension, delivering efficient fluid circulation and wetting performance.
- Excellent Electrical Performance: Low dielectric constant, low dielectric loss and high dielectric strength, ideal for cooling and insulation of high-voltage electronic equipment.
- Outstanding Environmental Protection: Zero damage to the ozone layer, low GWP, and exempted from U.S. EPA VOC regulations, meeting strict international environmental standards.
- Wide Material Compatibility: No corrosion or damage to conventional metals, plastics, rubber and other elastomers, adaptable to diverse equipment materials.
- Water Insolubility: Stable phase separation with water, avoiding performance degradation caused by moisture infiltration.
Technical Data
| Item | Typical Value |
|---|---|
| Appearance | Clear colorless liquid |
| Purity, % | >99.5 |
| Boiling Point, °C | 132.1 |
Kinematic Viscosity (25 °C, mm2/s) | 0.9862 |
Density, g/cm3 | 1.6456 |
| Surface Tension (25°C, mN/m) | 15.97 |
| Flash Point, °C | None |
| Autoignition Temperature, °C | 375 |
| Vapor Pressure(25°C, kPa) | 3.210 |
Surface Tension , mN.m-1 | 15.97 |
| Thermal Conductivity (25°C, W∙m-1 ∙K-1) | 0.0601 |
| Dielectric Loss (1 MHz) | 0.00039 |
| Dielectric Strength (2.5mm, KV) | ≥35 |
| Dielectric Constant @1KHz | 8.80 |
| Volume Resistivity (25°C, Ω·mm) | 2.991x10 12 |
| Dielectric Loss (1 MHz) | 0.00063 |
| Flash Point, °C | None |
| KB | 2.68 |
Main Applications
1. Semiconductor & Flat Panel Display Industry
Special cooling medium for ion implanters, dry etchers and CVD machines in semiconductor and panel production lines; also applicable to cooling for semiconductor thermal shock test equipment, ensuring stable operation of precision processes.
2. High-End Electronic & Power Equipment
- Single-phase and two-phase direct contact cooling for supercomputers and sophisticated military electronic devices.
- Heat dissipation medium for high-voltage transformers and power electronics, relying on excellent insulation and heat transfer performance.
3. Pharmaceutical & Fine Chemical Industry
Used as an alternative to traditional process fluids for freeze-drying equipment and reactor cooling in pharmaceutical and chemical production, featuring stable performance and environmental friendliness.
4. Universal Industrial Heat Transfer Fluid
As a premium 3M Novec 7500 alternative, it is widely used to replace PFCs and PFPEs in various heat transfer, insulation and precision testing scenarios.
Safety Operation Guidelines:
1. Perfluoroheptyl ether (TPD-HFE-7500) is a volatile hydrofluoroether. It will decompose under high temperature, generating toxic hydrogen fluoride and fluorocarbon organic compounds. Strictly keep away from heat sources, fire sources and high-temperature environments.
2. During operation, avoid liquid splashing into eyes and direct skin contact. Wear protective gloves, gas masks and safety goggles as mandatory protective gear.
3. Seal the container tightly immediately after use to prevent product volatilization and quality loss. Thoroughly clean hands after operation.
4. Conduct all operating procedures in a well-ventilated workshop to reduce the concentration of volatile gas.
Packing
N.W.5KG Plastic drums or N.W.25KG, N.W.250KG Iron drums.
Transportation & Storage
1. Transported as a non dangerous chemical.
2. It should be stored in a clean, dry and ventilated warehouse.
3. Keep the container closed to prevent high temperature and sunlight, away from heat source, fire source and strong alkali.




