Ethyl nonafluorobutyl ether is primarily used as a solvent in various industrial applications due to its excellent chemical stability and low surface tension. It is commonly employed in the electronics industry for cleaning and degreasing sensitive components, as it effectively removes contaminants without leaving residues. Additionally, it is utilized in the formulation of specialty coatings and lubricants, where its non-flammable and inert properties are advantageous. In the field of analytical chemistry, it serves as a solvent for extracting and analyzing non-polar compounds. Its unique properties also make it suitable for use in heat transfer fluids and as a dielectric fluid in certain electrical applications.