Dimethyl sebacate /DMS CAS No:106-79-6 C12H22O4

Overview

High-purity dimethyl sebacate is produced primarily from castor oil. The current method for preparing dimethyl sebacate involves mixing sebacic acid and methanol in a specific ratio. Under the action of a catalyst, once the sebacic acid is completely dissolved, an esterification reaction is carried out. When the temperature drops to the point where a phase boundary forms in the solution, the aqueous phase is separated; Then, additional decanedioic acid and methanol are added to carry out a second esterification reaction. In the above esterification process, concentrated sulfuric acid is generally used as the catalyst. Since this liquid catalyst cannot be recovered, it not only incurs high costs but also poses certain hazards to operators during the process.

Applications

High-purity dimethyl sebacate is a high-tech product produced from castor oil as the primary raw material. It is synthesized through multiple complex chemical and physical processes to form dimethyl sebacate, which is then refined using vacuum steam distillation technology. It is primarily used as a high-grade cold-resistant plasticizer and in high-grade cold-resistant greases for the aviation and aerospace industries; it can also serve as a plasticizer, softener, and solvent for cellulose resins, vinyl resins, and synthetic rubber;