1. As a General Solvent
This is its most core and widespread use. Dibutyl ether can dissolve a variety of organic substances and is often used as a solvent for dissolving or processing hydrocarbons, resins, oils, organic acids, esters, alkaloids, and other substances.

2. As an Electronic-Grade Cleaning Agent
It is used as an electronic-grade cleaning agent. This typically refers to its use in the manufacturing of electronic components or the cleaning of precision instruments to remove oil and impurities.

3. As an Organic Synthesis Reaction Medium
Dibutyl ether is often used as a reaction solvent or reaction medium in organic chemical synthesis, providing a stable environment for chemical reactions. For example, it is one of the commonly used solvents for the preparation of Grignard reagents.

4. As an Extractant
Utilizing its solubility characteristics, dibutyl ether can be used to extract and purify specific components from mixtures, such as hormones and natural products.

5. For Special Separation Processes
A more specialized use is in a mixed solution with tributyl phosphate for the separation of rare earth elements. In addition, it has also been used in plutonium separation processes.

6. As a Stabilizing Solution for Specific Chemicals
On the market, one common commercial form of phenyllithium (an organolithium reagent) is a 1.8 M (molar concentration) solution in dibutyl ether. This indicates that dibutyl ether can stabilize such highly reactive reagents.