Dibutyl oxalate

Dibutyl oxalate (CAS 2050-60-4), also known as butyl oxalate, is a dibutyl ester of oxalic acid used industrially as a plasticizer and specialty solvent. It functions as a processing aid in polymer systems and a carrier in formulations. This chemical is utilized where controlled solvency and compatibility with organic substrates are required. In plastics and polymer processing, it acts as a plasticizer to improve flexibility and workability in resin systems.

It is particularly effective where ester-type compatibility is needed for specific manufacturing goals. Lubricant and metalworking formulators incorporate it as a functional additive or carrier fluid in cutting fluids. The compound is also found in specialty lubricant blends and serves as a solvent or co-solvent in coating formulations. Controlled evaporation and resin compatibility are critical to the final film performance.

Its ester character makes it a candidate for use in polymer synthesis as a reactive intermediate or processing solvent. This versatility allows for broad application across various chemical manufacturing sectors. Dibutyl oxalate is supplied as a clear liquid in standard industrial packaging, including drums and intermediate bulk containers. Technical grade is the primary commercial specification available.

Purity levels typically range from 98% to 99%+, with high-purity grades available for more demanding applications. These specifications ensure reliability for industrial and polymer formulation requirements.