


Cas 163702-06-5 Ethyl perfluorobutyl ether is a hydrogenated fluorinated ether (HFE) fluorinated organic compound with the molecular formula C6H5F9O and a molecular weight of 264.09. It combines the stability of fluorocarbon compounds with the low surface tension characteristics of ethers. With an ODP of 0 and a GWP of only 55, it serves as an environmentally friendly solvent and thermal management fluid.
| Item | Specification |
| Melting point | -138 °C |
| Boiling point | 76–78 °C |
| Density | 1.428–1.435 g/cm³ (25 °C) |
| Surface tension | 17.6 mN/m (25 °C) |
| Dielectric constant | 8.0 (25 °C, 1 MHz) |
| Vapor pressure | 14,532.1 Pa [at 25 °C] |
| Solubility | Insoluble in water; miscible with most organic solvents. |
| Thermal stability | High; decomposition temperature > 300°C |
| Compatibility | Compatible with metals, rigid plastics, and most elastomers. |
Precision Electronics Cleaning: Used as an eco-friendly precision cleaning agent for removing light oil stains and flux residues from PCBs, semiconductor chips, optical components, and precision machinery; suitable for ultrasonic and vapor-phase cleaning processes.
Electronics Cooling and Thermal Management: Used as an insulating coolant for immersion liquid cooling of data center servers, as well as a thermal management medium for power electronics and lithium-ion batteries.
Cosmetic Ingredients: Added to sunscreens, color cosmetics, and skincare products as a refreshing solvent, skin-feel modifier, and film-forming aid to enhance product spreadability and user experience.
Industrial Solvents and Media: Used as reaction solvents, lubricant carriers, defoamers and foam control agents for coatings and inks, as well as specialty solvents for gas chromatography analysis.
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